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

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

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

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

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

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

"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 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…"

"We are told to remember the idea, not the man, because a man can fail. He can be caught, he can be killed and forgott…"