He can compress the most words into the smallest ideas of any man I ever met.

He can compress the most words into the smallest ideas of any man I ever met.

All great ideas are dangerous.

All great ideas are dangerous.

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.

We often refuse to accept an idea merely because the tone of voice in which it has been expressed is read more

We often refuse to accept an idea merely because the tone of voice in which it has been expressed is unsympathetic to us.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

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.

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.

An invasion of armies can be resisted, but not an idea whose time has come.

An invasion of armies can be resisted, but not an idea whose time has come.

When ideas fail, words come in very handy.

When ideas fail, words come in very handy.