Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in read more

Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living.

To have a great idea, have a lot of them.

To have a great idea, have a lot of them.

If at first the idea is absurd, then there is no hope for it.

If at first the idea is absurd, then there is no hope for it.

The best way to have a good idea is to have lots of ideas.

The best way to have a good idea is to have lots of ideas.

I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

If you steal ideas from one source, that's plagiarism, but if you steal ideas from more than one source, that's read more

If you steal ideas from one source, that's plagiarism, but if you steal ideas from more than one source, that's research.

A person with a new idea is a crank until the idea succeeds.

A person with a new idea is a crank until the idea succeeds.

Nothing is more dangerous than an idea, when a man has only one
idea.

Nothing is more dangerous than an idea, when a man has only one
idea.

All great ideas are dangerous.

All great ideas are dangerous.