Ignorance is not bliss -- it is oblivion. Determined ignorance is the hastiest kind of oblivion.

Common man has at long last got himself so far out of gear with nature and his environment that he is beginning to see the shape of extinction, whether he reco…

Few men, indeed, are so mad that they do not know when they are doing wrong. But so avid is their pursuit of goods that wrongdoing has become an element of all…

But we [Americans] are as other men, exactly. Of one blood, one species, one brain, one figure, one fundamental set of collective instincts, one solitary body …

An empty head is not really empty; it is stuffed with rubbish. Hence the difficulty of forcing anything into an empty head.

The principle itself of dogmatic religion, dogmatic morality, dogmatic philosophy, is what requires to be rooted out; not any particular manifestation of that …

First come I; my name is Jowett. There's no knowledge but I know it. I am master of this college: What I don't know isn't knowledge.