A photograph can be an instant of life captured for eternity that will never cease looking back at you.

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

Our greatest foes - and whom we must chiefly combat - are within.

There are no good girls gone wrong - just bad girls found out.

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

If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.

All that spirits desire, spirits attain.

Computers are useless. They can only give you answers.

Good actions ennoble us, and we are the sons of our deeds.

For the meaning of life differs from man to man, from day to day and from hour to hour. What matters, therefore, is not the meaning of life in general but rather the specific meaning of a person's life at a given moment.

Nothing is black or white.

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

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

If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance.

I can bear any pain as long as it has meaning.

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

Radical simply means 'grasping things at the root'.

How vain it is to sit down to write when you have not stood up to live.

All men are prepared to accomplish the incredible if their ideals are threatened.

I want to put a ding in the universe.

I want to go ahead of Father Time with a scythe of my own.