One unerring mark of the love of truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant.
The point is not to take the world's opinion as a guiding star but to go one's way in life and working unerringly neither depressed by failure nor seduced by applause.
We used to wonder where war lived what it was that made it so vile. And now we realize that we know where it lives... inside ourselves.