“In anger we should refrain both from speech and action.”

“Anger begins in folly, and ends in repentance.”

“You should make great things, not promising great things.”

“A blow from your friend is better than a kiss from your enemy.”

“Declining from the public ways, walk in unfrequented paths.”

“We ought so to behave to one another as to avoid making enemies of our friends, and at the same time to make friends of our enemies.”

“If there be light, then there is darkness; if cold, heat; if height, depth; if solid, fluid; if hard, soft; if rough, smooth; if calm, tempest; if prosperity, adversity; if life, death.”