The true test of a man's character is what he does when no one is watching.

If you pick up a starving dog and make him prosperous he will not bite you. This is the principal difference between a dog and man.

What do you despise? By this are you truly known.

Time is an illusion. Lunchtime doubly so.

You’ll miss the best things if you keep your eyes shut.

The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an agnostic

Pain is inevitable. Suffering is optional.

Hollywood brides keep the bouquets and throw away the grooms.

No flying machine will ever fly from New York to Paris.

He who surpasses or subdues mankind must look down on the hate of those below.

Character is like a tree and reputation like a shadow. The shadow is what we think of it; the tree is the real thing.

Anxiety is the dizziness of freedom.

The cloud is free only to go with the wind. The rain is free only in falling.

Real stupidity beats artificial intelligence every time.

Where grief is fresh, any attempt to divert it only irritates.

If the world was perfect, it wouldn't be.

He who possesses most must be most afraid of loss.

In just six weeks from the time the design was started, we had the motor on the block testing its power.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil and no good, nothing but blind pitiless indifference.

Charity ... is the opium of the privileged.

As we look ahead into the next century, leaders will be those who empower others.