The kiss is neither returned nor exchanged, because it's free. (Le baiser n'est ni repris - Ni échangé, car gratuit.) - Charles de Leusse
Skepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness. - George Santayana
The cost of a thing is the amount of what I call life which is required to be exchanged for it, immediately or in the long run. - Henry David Thoreau
Man in his spiritual pride has exchanged God’s method of self-denial for Satan’s plan of self–improvement. - Daniel W. Blair
Many have exchanged the touch of God for the applause of men - John Paul Warren
Patience creates a platform for deeply intimate communication. This platform tests our ability to listen, our willingness to be kind, and our strength against loss. This is the platform in which the most authentic types beauty can be exchanged. - Ilse Hildebrandt
He turned his gaze upon her, and their eyes not only met, the pupils shook hands, exchanged business cards, and sat down for tea together. - John Moore