"Man is a credulous animal, and must believe something; in the absence of good grounds for belief, he will be satisfied with bad ones."

"We know very little, and yet it is astonishing that we know so much, and still more astonishing that so little knowledge can give us so much power."

"There is much pleasure to be gained from useless knowledge."

"Our great democracies still tend to think that a stupid man is more likely to be honest than a clever man."

"Change is scientific, progress is ethical; change is indubitable, whereas progress is a matter of controversy."

"All exact science is dominated by the idea of approximation."

"He is richest who is content with the least."

"True strength lies in gentleness."

"The most beautiful adventures are not those we go to seek."

"it is the mark of an educated mind to be able to entertain a thought without accepting it."

"Sin is geographical."

"MYRMIDON, n. A follower of Achilles -- particularly when he didn't lead."