Authors:

Vices and frailties correct each other, like acids and alkalies. If each vicious man had but one vice, I do not know how the world could go on.

Richard Whately (1856). “Thoughts and Apophthegms: From the Writings of Archbishop Whateley”, p.241
Vices and frailties correct each other, like acids and alkalies. If each vicious man had but one vice, I do not know how the world could go on.