If you feed your mind as often as you feed your stomach, then you'll never have to worry about feeding your stomach or a roof over your head or clothes on your back.

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.

Human being is the only creature I found ho does everything he is not suppose to do.

If a story is no good, being based on Hamlet won't save it.

No one is so miserable as the poor person who maintains the appearance of wealth.

I venture to say no war can be long carried on against the will of the people.

Curiosity is the essence of human existence.

Don't be a hero, live to fight another day.

As Socrates I believe said the unexamined life is not worth living. I believe that's true. I do believe that.

When the uncapped potential of a student meets the liberating art of a teacher, a miracle unfolds.

I can’t imagine anything being more disastrous to our country than if the dollar lost its reserve-currency status.

Luckily, growing up "unfinished" can make geeks the very best people to guide and nurture the next generation of outsiders: We know you don't have to be finished to be awesome.