Lucius Annaeus Seneca

“All cruelty springs from weakness.”

“Anger, if not restrained, is frequently more hurtful to us than the injury that provokes it.”

“Every man prefers belief to the exercise of judgment.”

“It better befits a man to laugh at life than to lament over it.”

“It is to the interest of the commonwealth of mankind that there should be some one who is unconquered, some one against whom fortune has no power.”

“It's a vice to trust all, and equally a vice to trust none.”  [Letters to Lucilius]

“Not he who has little, but he who wishes more, is poor.”

“Our plans miscarry because they have no aim. When a man does not know what harbor he is making for, no wind is the right wind.”

“Per aspera ad astra.”  (“To the stars through hardship.”)

“There are more things to alarm us than to harm us, and we suffer more often in apprehension than reality.”

“There is no genius free from some tincture of madness.”