“That love which does not build a foundation on good sense is doomed.”

“If we would build on a sure foundation in friendship, we must love friends for their sake rather than for our own.”

“Confuse not love with the raptures of possession, which bring the cruellest of sufferings. For, notwithstanding the general opinion, love does not cause suffering: what causes it is the sense of ownership, which is love's opposite.”

“To build communism it is necessary, simultaneous with the new material foundations, to build the new man and woman.”

“For man holds his ground only by surpassing himself, in the same sense in which it is said that one ceases to love if one does not love increasingly everyday.”

“It is doubly chimerical to build peace on economic foundations which, in turn, rest on the systematic cultivation of greed and envy, the very forces which drive men into conflict.”

“The foundation of democracy is the sense of spiritual independence which nerves the individual to stand alone against the powers of this world.”

“Love does strange things to a man’s sense of proportion, which is why—contrary to rumor—it is by no means the Devil’s least favorite emotion.”

“People think love is an emotion. Love is good sense.”

“Science, which is the logic of nature, demands proportion between the house and its foundation. Theology sometimes builds weighty structures on a doubtful base.”