“Just because something is traditional is no reason to do it, of course.”

“Do not believe a thing because you have read about it in a book. Do not believe a thing because another man has said it was true. Do not believe in words because they are hallowed by tradition. Find out the truth for yourself. Reason it out. That is realization.”

“Do not believe in a thing because you have read about it in a book. Do not believe in a thing because another man has said it was true. Do not believe in words because they are hallowed by tradition. Find out the truth for yourself. Reason it out. That is realization.”

“Man must not check reason by tradition, but contrariwise, must check tradition by reason.”

“We should recognize the reality that just because something is good is not sufficient reason for doing it. The number of good things we can do far exceeds the time available to accomplish them.”

“If you have more than one reason to do something (choose a doctor or veterinarian, hire a gardener or an employee, marry a person, go on a trip), just don’t do it. It does not mean that one reason is better than two, just that by invoking more than one reason you are trying to convince yourself to do something. Obvious decisions (robust to error) require no more than a single reason.”