One tells as few lies as possible only by telling as few lies as possible, and not by having the least possible opportunity to do so.[Man lügt möglichst wenig, nur wenn man möglichst wenig lügt, nicht wenn man möglichst wenig Gelegenheit dazu hat.]
Source:Dearest Father: Stories and Other Writings (Schocken Books, ed. 1954), Chapter 2. Reflections on Sin, Suffering, Hope, and the True Way, Aphorisms 58, Page 40