The block of granite which was an obstacle in the pathway of the weak, became a stepping-stone in the pathway of the strong.

Speech is of time, silence is of eternity.

Conviction never so excellent, is worthless until it coverts itself into conduct.

The best effect of any book is that it excites the reader to self activity.

It is meritorious to insist on forms; religion and all else naturally clothes itself in forms. Everywhere the formed world is the only habitable one.

If what you have done is unjust, you have not succeeded.

Science must have originated in the feeling that something was wrong.