Ideas are the roots of creation.
Life is a succession of lessons enforced by immediate reward, or, oftener, by immediate chastisement.
Americans cannot realize how many chances for mental improvement they lose by their inveterate habit of keeping six conversations when there are twelve in the room.
The happiness of most people we know is not ruined by great catastrophes or fatal errors, but by the repetition of slowly destructive little things.
The history of the past interests us only in so far as it illuminates the history of the present.