The theory must not contradict empirical facts.

Gravitation is not responsible for people falling in love.

Life is like riding a bicycle. To keep your balance, you must keep moving.

Life isn't worth living, unless it is lived for someone else.

Imagination is everything. It is the preview of life's coming attractions.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Strive not to be a success, but rather to be of value.

The true sign of intelligence is not knowledge but imagination.

God is clever but not dishonest.

Try not to become a man of success but rather a man of value.

Weakness of attitude becomes weakness of character.

Evil travels the world in anonymity, its presence revealed only by the periodic consequences of its desires...

It's hardly ever that I am hurt by something in only one dimension.

I'll never be known for my work with boundaries.

I don't celebrate Valentine's Day. It gets in the way of Black History Month. Cupid didn't free any slaves.

I know [Rudy Giuliani] call the protesters crybabies.

Love never reasons, but profusely gives, Gives, like a thoughtless prodigal, its all, And trembles then, lest it has done too little.

Of course, I think it is legitimate for the Commander-in-Chief to be concerned for the safety of his soldiers.

It's impossible for me to say one word about all that music has meant to me in my life. How, then, can I hope to be understood?

And I also take photos of hydrogen bomb, from another part of the building. It was not part of my job, but I succeeded to go and take photos of the hydrogen bomb.

A hush is over everything, Silent as women wait for love; The world is waiting for the spring.