I am sometimes shocked by the blasphemies of those who think themselves pious.

Ideas and principles that do harm are as a rule, though not always, cloaks for evil passions.

Freedom comes only to those who no longer ask of life that it shall yield them any of those personal goods that are subject to the mutations of time.

All knowledge, we feel, must be built up upon our instinctive beliefs; and if these are rejected, nothing is left.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

The really useful education is that which follows the direction of the child's own instinctive interests, supplying knowledge for which it is seeking, not dry, detailed information wholly out of relation to its spontaneous desires.

Inferences of Science and Common Sense differ from those of deductive logic and mathematics in a very important respect, namely, when the premises are true and the reasoning correct, the conclusion is only probable.