This self-love is the instrument of our preservation; it resembles the provision for the perpetuity of mankind: it is necessary, it is dear to us, it gives us pleasure, and we must conceal it.
It is amusing that a virtue is made of the vice of chastity; and it's a pretty odd sort of chastity at that, which leads men straight into the sin of Onan, and girls to the waning of their color.