The mind, in short, works on the data it receives very much as the sculptor works on his block of stone.

Man alone of all the creatures of earth can change his own pattern. Man alone is the architect of his own destiny.

Effort is the one strictly undervalued and original contribution we make to this world.

Psychology ought certainly to give the teacher radical help.

Truth in our ideas means their power to work.

If you want a quality, act as if you already had it.

Any object not interesting in itself may become interesting through becoming associated with an object in which an interest already exists.