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.

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.

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.

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.

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.

The most powerful factors in the world are clear ideas in the minds of energetic men of good will.

The most powerful factors in the world are clear ideas in the minds of energetic men of good will.

It is not once nor twice but times without number that the same
ideas make their appearance in the read more

It is not once nor twice but times without number that the same
ideas make their appearance in the world.

We don't let them have ideas. Why would we let them have guns?

We don't let them have ideas. Why would we let them have guns?