If the highest things are unknowable, then the highest capacity or virtue of man cannot be theoretical wisdom.

Einstein's gravitational theory, which is said to be the greatest single achievement of theoretical physics, resulted in beautiful relations connecting gravitational phenomena with the geometry of space; this was an exciting idea.

Whenever anyone says, 'theoretically,' they really mean, 'not really.'

Everything is theoretically impossible, until it is done.

All the evidence, experimental and even a little theoretical, seems to indicate that it is the energy content which is involved in gravitation, and therefore, since matter and antimatter both represent positive energies, gravitation makes no distinction.

We do not need a heavy theoretical thumb on the scales. What's important is how the traditional sources of law and legal interpretation - text, structure, history, canons of interpretation, precedent, and other well-established tools of the judicial craft - are prioritized, weighted, and applied.

Paper knowledge, paper evaluations, paper degrees all too papery and all too theoretical; it has very little that prepares us for real life in the real world.

Practical knowledge of what works and what doesn't work is much better. Theoretical knowledge is important, but I think practical knowledge works better.

Each department of knowledge passes through three stages. The theoretic stage; the theological stage and the metaphysical or abstract stage.

The research I have been doing - studying how foodstuffs yield energy in living cells - does not lead to the kind of knowledge that can be expected to give immediate practical benefits to mankind. If I have chosen this field of study, it was because I believed in its importance in spite of its theoretical character.

Picking my topics is sort of a process of elimination for me. Most things don't work for me. I like to cover science and unexpected things happening in labs. Also, theoretical research doesn't work for my style. I need scenes and interactions. Then, humor. I'm having the most fun when I can have fun with my work.

There's the famous quote that if you want to understand how animals live, you don't go to the zoo, you go to the jungle. The Future Lab has really pioneered that within Lego, and it hasn't been a theoretical exercise. It's been a real design-thinking approach to innovation, which we've learned an awful lot from.

Faith means belief in something concerning which doubt is theoretically possible.

When you design a building, you start from a general philosophy, and you come down, and you start from detail and come up. Only the theoretical architect believes that you can make the concept and then sometime, somebody will come to build it.

My work was fairly theoretical. It was in recursive function theory. And in particular, hierarchies of functions in terms of computational complexity. I got involved in real computers and programming mainly by being - well, I was interested even as I came to graduate school.

When computers came along, I felt for the first time that I had the proper tools for the kind of theoretical work I wanted to do. So I moved over to that, and that got me into psychology.

With communication technology in general, there's a kind of certain critical mass of people. Once you get to 15% of the world's entire population using one communication technology, that's a big deal. It's beyond the theoretical at this point. The people who think it's a fad have probably not been paying that much attention.

Theoretically, every probationary officer has a chance to become chairman.

Now, I'm not saying I'm fashionable, but there are sociological interests that matter to me, things that are theoretical, political, intellectual and also concerned with vanity and beauty that we all think about but that I try to mix up and translate into fashion.

Using reason without applying it to experience only leads to theoretical illusions. Ideas derived from real world experiences lead to acquisition of knowledge, and the accumulation of time-tested principles leads to wisdom.

"The rights paradigm, which, as I interpret it, morally requires the abolition of animal exploitation and requires veganism as a matter of fundamental justice, is radically different from the welfarist paradigm, which, in theory focuses on reducing suffering, and, in reality, focuses on tidying up animal exploitation at its economically inefficient edges. In science, those who subscribe to one paradigm are often unable to understand and engage those who subscribe to another paradigm precisely because the theoretical language that they use is not compatible.

"...I am not, however, militant in my atheism. The great English theoretical physicist

Think of God and not religion, of ecstasy and not mysticism. The difference between the theoretician of faith and the believer is as great as between the psychiatrist and the psychotic.

Seduced by the spectacular theoretical and practical successes of the objective sciences into thinking that the methods and criteria of those sciences were the only means to truth, philosophers sought to apply those same methods and criteria to questions relating to the meaning of life and the values that give meaning to life. Philosophy, especially the Analytical species prevalent in the English-speaking world, was broken up into specialized disciplines and fragmented into particular problems, all swayed and impregnated by scientism, reductionism, and relativism. All questions of meaning and value were consigned to the rubbish heap of 'metaphysical nonsense'.