Serious development of the personality begins at the closet door.

If the topic be highly abstract, show its nature by concrete examples. If it be unfamiliar, trace some point of analogy in it with the known. If it be inhuman, make it figure as part of a story. If it be difficult, couple its acquisition with some prospect of personal gain. Above all things, make sure that it shall run through certain inner changes, since no unvarying object can possibly hold the mental field for long.

We with our lives are like islands in the sea, or like trees in the forest... But the trees also commingle their roots in the darkness underground.

'Facts' are the bounds of human knowledge, set for it, not by it.

Most of us can learn to live in perfect comfort on higher levels of power. Everyone knows that on any given day there are energies slumbering in him which the incitements of that day do not call forth. Compared with what we ought to be, we are only half awake. It is evident that our organism has stored-up reserves of energy that are ordinarily not called upon - deeper and deeper strata of explosible material, ready for use by anyone who probes so deep. The human individual usually lives far within his limits.

The most immutable barrier in nature is between one man's thoughts and another's.

The work that leads to a doctor's degree is a constant temptation to sacrifice one's growth as a man to one's growth as a specialist.