The mind's direction is more important than its progress.
Old age deprives the intelligent man only of qualities useless to wisdom.
The punishment of those who have loved women too much is to love them always.
Credulity forges more miracles than trickery could invent.
Fully to understand a grand and beautiful thought requires, perhaps, as much time as to conceive it.
The mind conceives with pain, but it brings forth with delight.