Boris Pasternak Quote
The great majority of us are required to live a life of constant duplicity. Your health is bound to be affected if, day after day, you say the opposite of what you feel, if you grovel before what you dislike, and rejoice at what brings you nothing but misfortune. Our nervous system isn't just a fiction, it's part of our physical body, and our souls exists in space and is inside us, like the teeth in the mouth. It can't forever be violated with impunity.
As quoted in "Boris Pasternak" in I.F. Stone's Weekly (3 November 1958), § "Words Which Apply to Us As Well As Russia"; later in The Best of I.F. Stone (2006), p. 43 - Doctor Zhivago (1957)