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.

All great ideas are dangerous.

All great ideas are dangerous.

Adults are always asking little kids what they want to be when they grow up because they're looking for ideas

Adults are always asking little kids what they want to be when they grow up because they're looking for ideas

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.

Good ideas are common - what's uncommon are people who'll work hard enough to bring them about

Good ideas are common - what's uncommon are people who'll work hard enough to bring them about

It is by acts, and not by ideas that people live.

It is by acts, and not by ideas that people live.

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?

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.