Before crime is committed conscience must be corrupted, and every bad man who succeeds in reaching a high point of wickedness begins with this.

Work while you have the light. You are responsible for the talent that has been entrusted to you.

To feel keenly the poetry of a morning's roses, one has to have just escaped from the claws of this vulture which we call sickness.

Time is but the measure of the difficulty of a conception. Pure thought has scarcely any need of time, since it perceives the two ends of an idea almost at the same moment.

Every living being seeks instinctively to complete itself.

Sympathy is the first condition of criticism.

Do not despise your situation; in it you must act, suffer, and conquer. From every point on earth we are equally near to heaven and to the infinite.