If we have built on the fragile cornerstones of human wisdom, pride, and conditional love, things may look good for a while, but a weak foundation causes collapse when storms hit.

It's ironic that when you go through a tragedy, you appreciate more. You realize how fragile life is and that there are so many things to still be thankful for.

We have one planet in our solar system that's habitable, and that's the Earth, and space travel can transform things back here for the better. First of all, by just having people go to space and look back on this fragile planet we live on. People have come back transformed and have done fantastic things.

You get this overview effect where you realize how small we are and how fragile our planet is and how we're really all in it together. You don't see borders from space, you don't see diversity and differences in people on Earth.

Once you've been in space, you appreciate how small and fragile the Earth is.

If you're a woman, it's almost impossible to establish a relationship. You're too much for everybody. It's too much. The woman always has to play this role of being fragile and dependent. And if you're not, they're fascinated by you, but only for a little while. And then they want to change you and crush you. And then they leave.

We travel together, passengers on a little spaceship, dependent on its vulnerable reserves of air and soil, all committed, for our safety, to its security and peace. Preserved from annihilation only by the care, the work and the love we give our fragile craft.

Nature builds things that are antifragile. In the case of evolution, nature uses disorder to grow stronger. Occasional starvation or going to the gym also makes you stronger, because you subject your body to stressors and gain from them.

I think men are afraid to be with a successful woman, because we are terribly strong, we know what we want and we are not fragile enough.

I never learnt Hebrew because my health was fragile, and it was thought that learning Hebrew would be an added burden. I regret it, because I would like to be able to join in fully. Not that I am a believer, but I would like to be.

The innovative process is a fragile one, dependent on a complex, often messy interplay of imagination, competition, and exchange. Curbing new ideas hurts not only individual creators but the audience for which they create and the posterity that inherits their legacy.

The good part about getting older is you stop trying to prove anything to anyone, including yourself. All you are in the pursuit of is collecting experiences - beautiful, fragile little soap bubbles that you store in your heart, and every once in a while you pull one out and gaze at the delicate pictures it shows you.

You know when you're young you think you will always be. As you become more fragile, you reflect and you realize how much comfort can come from the past. Hymns can carry you into the future.

Freedom is fragile and must be protected. To sacrifice it, even as a temporary measure, is to betray it.

I think of fitness as being about heart health and staying strong and agile. That actually makes me go to the gym. I used to hate it, and you couldn't drag me there, but now I can't stand it if I don't go, which seems weird.

Human spirit is the ability to face the uncertainty of the future with curiosity and optimism. It is the belief that problems can be solved, differences resolved. It is a type of confidence. And it is fragile. It can be blackened by fear and superstition.

To be famous these days with no grounding and no substance is not especially difficult. I urge you instead to seek to be relevant, to be agile and educated.

Parents need all the help they can get. The strongest as well as the most fragile family requires a vital network of social supports.

Over and over, we hear politicians say they can't spend our tax dollars on environmental protection when the economy is so fragile.

I like to stay balanced in life, so I don't have to do some radical diet. I love my job, and I obviously want to feel good when I am working, but I also want to feel energized and agile all the time. As a New Yorker, I live in the land of plenty, and yet every day I see people who could use a good meal.

With increasing fervor since the 1980s, sustainability has been the watchword of scientists, environmental activists, and indeed all those concerned about the complex, fragile systems on the sphere we inhabit. It has shaped debates about business, design, and our lifestyles.

Life is fragile: it thrives only in a narrow range of temperatures between freezing and boiling. How lucky that our planet is just the right distance from the sun: a little farther, and the death of the perpetual Antarctic winter - or worse - would prevail; a little closer, and the surface would truly fry anything that touched it.

Peace is a fragile thing. It takes courage to secure it. It takes wisdom to maintain it.

Like fragile ice anger passes away in time.