If any organism fails to fulfill its potentialities, it becomes sick.

When two minds of a high order, interested in kindred subjects, come together, their conversation is chiefly remarkable for the summariness of its allusions and the rapidity of its transitions. Before one of them is half through a sentence the other knows his meaning and replies. ... His mental lungs breathe more deeply, in an atmosphere more broad and vast.

To know psychology, therefore, is absolutely no guarantee that we shall be good teacher.

As a rule reading fiction is as hard to me as trying to hit a target by hurling feathers at it. I need resistance to celebrate!

The great use of life is to spend it for something that will outlast it." "This life is worth living, we can say, since it is what we make it." "Believe that life is worth living and your belief will help create the fact.

Agisci come se quel che fai, facesse la differenza. La fa!

Success or failure depends more upon attitude than upon capacity.