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.

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.

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

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

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.

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.

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.

Often the difference between a successful person and a failure is not one has better abilities or ideas, but the read more

Often the difference between a successful person and a failure is not one has better abilities or ideas, but the courage that one has to bet on one's ideas, to take a calculated risk - and to act.

An idea that is not dangerous is unworthy of being called an idea at all.

An idea that is not dangerous is unworthy of being called an idea at all.

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.