Relativity applies to physics, not ethics.
The value of a man resides in what he gives
Man like every other animal is by nature indolent. If nothing spurs him on, then he will hardly think, and will behave from habit like an automaton.
Conviction is a good motive, but a bad judge.
This is a time, when there seems to be a particular need for friends of wisdom and truth to join together.
Since the mathematicians have invaded the theory of relativity I do not understand it myself any more.