“Our instinctive apparatus consists of two parts- the one tending to further our own life and that of our descendants, the other tending to thwart the lives of supposed rivals.”

“Machines have altered our way of life, but not our instincts. Consequently, there is maladjustment.”

“Our great democracies still tend to think that a stupid man is more likely to be honest than a clever man, and our politicians take advantage of this prejudice by pretending to be even more stupid than nature made them.”

“Collective fear stimulates herd instinct, and tends to produce ferocity toward those who are not regarded as members of the herd.”

“Good and bad, and even the higher good that mysticism finds everywhere, are the reflections of our own emotions on other things, not part of the substance of things as they are in themselves.”

“It is essential to happiness that our way of living should spring from our own deep impulses and not from the accidental tastes and desires of those who happen to be our neighbors, or even our relations.”

“The methods of increasing the degree of truth in our beliefs are well known; they consist in hearing all sides, trying to ascertain all the relevant facts, controlling our own bias by discussion with people who have the opposite bias, and cultivating a readiness to discard any hypothesis which has proved inadequate.”