It is vain to try to sacrifice once for all one'syouthful ideals.

Las ideas más brillantes son siempre las más sencillas.

Ideas are like wandering sons They show up when you least expect them

Do not get obsolete like an old technology, keep innovating yourself.

Rules are a great way to get ideas. All you have to do is break them.

An army of principles can penetrate where an army of soldiers cannot.

I don’t want to adopt your ideas, I want to give birth to them.

Der Vorrath von Vorstellungen, den ein Geist hat, macht seine Welt aus.

The only valid censorship of ideas is the right of people not to listen

It isn't an idea until it’s created irrespective of its result

Yes, books are dangerous. They should be dangerous - they contain ideas.

The only valid censorship of ideas is the right of people not to listen.

We shared ideas like sweaters, with easy exchange and lack of ownership.

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

You just can't kill an idea. Some ideas are powerful because of that.