The first thing to learn in intercourse with others is non-interference with their own particular ways of being happy, provided those ways do not assume to interfere by violence with ours.

Great emergencies and crises show us how much greater our vital resources are than we had supposed.

We never fully grasp the import of any true statement until we have a clear notion of what the opposite untrue statement would be.

The old question of whether there is design is idle. The real question is what is the world, whether or not it have a designer--and that can be revealed only by the study of all nature's particulars.

The desire to gain wealth and the fear to lose it are our chief breeders of cowardice and propagators of corruption.

But it is the bane of psychology to suppose that where results are similar, processes must be the same. Psychologists are too apt to reason as geometers would, if the latter were to say that the diameter of a circle is the same thing as its semi-circumference, because, forsooth, they terminate in the same two points.

Between what a man calls me and what he simply calls mine the line is difficult to draw. We feel and act about certain things that are ours very much as we feel and act about ourselves.