Black holes are where God divided by zero.

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.

Leave. Just leave while I am still strong enough to let you go.

We create the world we live in. If we want to change what we don't like in the world, we must start by changing what we don't like about ourselves.

The great difference between voyages rests not in ships but in the people you meet on them.

Winning is the most important. Everything is consequence of that.

To see your enemy and know him is a part of the complete education of man.

The penalty for success is to be bored by the people who used to snub you.

The more one produces, the less one gets.

If there be one man, more than another, who deserves to succeed in flying through the air, that man is Mr. Laurence Hargrave, of Sydney, New South Wales.

Bigger than life is not difficult for me. I am bigger than life.

How shocking must thy summons be, O death, to him that is at ease in his possessions! who, counting on long years of pleasure here, is quite unfurnished for the world to come.