"An idea starts to be interesting when you get scared of taking it to its logical conclusion."

"To say that everything is idea or that everything is spirit, is the same as saying that everything is matter or that …"

"Ideas are more powerful than guns. We would not let our enemies have guns, why should we let them have ideas?"

"“Our ideas” are only partly our ideas. Most of our ideas are abbreviations or residues of the thought of other people…"

"The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily ta…"

"Universal Peace, assuming it to be in the fullest sense realizable, might not require eons for its accomplishment, ho…"

"What is important is not the ideas themselves, but the context in which they operate."

"In the brain model proposed here, the causal potency of an idea, or an ideal, becomes just as real as that of a molec…"

"Ideas are like rabbits. You get a couple and learn how to handle them, and pretty soon you have a dozen."

"There is no tyranny in the world more hateful than that of ideas. Ideas bring ideophobia, and the consequence is that…"