We give others praise which we ourselves don't believe, as long as they respond with praise we can believe.
There are things that don't deserve to be said briefly.
One must either take an interest in the human situation or else parade before the void.
Nothing leads the scientist so astray as a premature truth.
Take heed of critics even when they are not fair; resist them even when they are.
We are not naïve enough to ask for pure men; we ask merely for men whose impurity does not conflict with the obligations of their job.