Nothing can produce so great a serenity of life as a mind free from guilt and kept untainted, not only from actions, but purposes that are wicked. By this means the soul will be not only unpolluted but also undisturbed. The fountain will run clear and unsullied.
PlutarchThe poor go to war, to fight and die for the delights, riches, and superfluities of others.
PlutarchFor the mind does not require filling like a bottle, but rather, like wood, it only requires kindling to create in it an impulse to think independently and an ardent desire for the truth.
Plutarch