“The thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have
“The things we really know are not the things we have merely read about or heard about, but the things we have lived, have experienced, have been sensible of
“Travel and society polish one, but a rolling stone gathers no moss, and a little moss is a good thing on a man
“Our esteem for facts has not neutralized in us all religiousness. It is itself almost religious. Our scientific temper is devout.