Serious things cannot be understood without laughable things, nor opposites at all without opposites.

And the first step, as you know, is always what matters most, particularly when we are dealing with those who are young and tender. That is the time when they are taking shape and when any impression we choose to make leaves a permanent mark.

If in a discussion of many matters ... we are not able to give perfectly exact and self-consistent accounts, do not be surprised: rather we would be content if we provide accounts that are second to none in probability.

Wisdom is a blaze, kindled by a leaping spark.

Those who have a natural talent for calculation are generally quick-witted at every other kind of knowledge; and even the dull, if they have had an arithmetical training, although they may derive no other advantage from it, always become much quicker than they would have been.

Love consists in feeling the Sacred One beating inside the loved one.

Few men are so obstinate in their atheism, that a pressing danger will not compel them to acknowledgment of a divine power.