An imprudent enemy is less dangerous than an imprudent friend.
Telescopes and binoculars endanger the ever-distant sublime.
Neat trick: to be roused to ambition and reconciled to one's mediocrity at the same time.
The mind demands rules; the facts demand exceptions.
Don't stare into a mirror when you are trying to solve a problem.
Analysis is more likely to adjust evidence than to adjust itself.