Barbaric accuracy - whimpering humility.

Ambition and suspicion always go together.

It is a sure evidence of a good book if it pleases us more and more as we grow older.

The ordinary man is ruined by the flesh lusting against the spirit; the scholar by the spirit lusting too much against the flesh.

It not seldom happens that in the purposeless rovings and wanderings of the imagination we hunt down such game as can be put to use by our purposeful philosophy in its well-ordered household.

To make a vow is a greater sin than to break one.

Nothing puts a greater obstacle in the way of the progress of knowledge than thinking that one knows what one does not yet know.