Happiness is spiritual, born of truth and love. It is unselfish; therefore it cannot exist alone, but requires all mankind to share it.

Truth cannot be brought down; rather, the individual must make the effort to ascend to it. You cannot bring the mountaintop to the valley. If you would attain to the mountaintop, you must pass through the valley, climb the steeps, unafraid of the dangerous precipices.

Truth cannot be defeated.

There are only two things. Truth and lies. Truth is indivisible, hence it cannot recognize itself; anyone who wants to recognize it has to be a lie.

There are new words now that excuse everybody. Give me the good old days of heroes and villains, the people you can bravo or hiss. There was a truth to them that all the slick credulity of today cannot touch.

Trust cannot be commanded; and yet it is also correct that the only one who earns trust is the one who is prepared to grant trust.

Be willing to trust your instincts, especially if you cannot find answers elsewhere.

We must trust to nothing but facts: these are presented to us by nature and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.

You cannot do everything at once, so find people you trust to help you. And don't be afraid to say no.

I'm a product of a military dictatorship. Under a dictatorship, you cannot trust information or dispense it freely because of censorship. So Brazilians become very flexible in the use of metaphors. They learn to communicate with double meanings.

I have to trust something that gives me power; I have to believe in something, but in my career I have a lot of moments I cannot explain with God.

Fifa has lost the trust of the people. We cannot allow the architects and controllers of world football to get away with dragging the beautiful game through the grime of corruption and bribery.

Sometimes you don't know who you can and cannot trust. I still learn that over and over again.

In every tyrant's heart there springs in the end this poison, that he cannot trust a friend.

When we, through our educational culture, through the media, through the entertainment culture, give our children the impression that human beings cannot control their passions, we are telling them, in effect, that human beings cannot be trusted with freedom.

We're never so vulnerable than when we trust someone - but paradoxically, if we cannot trust, neither can we find love or joy.

Are we at last brought to such humiliating and debasing degradation, that we cannot be trusted with arms for our defense?

Whoever is careless with the truth in small matters cannot be trusted with important matters.

In Einstein's equation, time is a river. It speeds up, meanders, and slows down. The new wrinkle is that it can have whirlpools and fork into two rivers. So, if the river of time can be bent into a pretzel, create whirlpools and fork into two rivers, then time travel cannot be ruled out.

Ah! Young people, travel if you can, and if you cannot - travel all the same!

People who don't travel cannot have a global view, all they see is what's in front of them. Those people cannot accept new things because all they know is where they live.

I still make sure to go, at least once every year, to a country where things cannot be taken for granted, and where there is either too much law and order or too little.

Perhaps travel cannot prevent bigotry, but by demonstrating that all peoples cry, laugh, eat, worry, and die, it can introduce the idea that if we try and understand each other, we may even become friends.

We must not, in trying to think about how we can make a big difference, ignore the small daily differences we can make which, over time, add up to big differences that we often cannot foresee.