“It is not by muscle, speed, or physical dexterity that great things are achieved, but by reflection, force of character, and judgment.”

“It is a great thing to know your vices.”

“Everyone has the obligation to ponder well his own specific traits of character. He must also regulate them adequately and not wonder whether someone else's traits might suit him better. The more definitely his own a man's character is, the better it fits him.”

“Six mistakes mankind keeps making century after century:Believing that personal gain is made by crushing others;Worrying about things that cannot be changed or corrected;Insisting that a thing is impossible because we cannot accomplish it;Refusing to set aside trivial preferences;Neglecting development and refinement of the mind;Attempting to compel others to believe and live as we do.”

“As for myself, I can only exhort you to look on Friendship as the most valuable of all human possessions, no other being equally suited to the moral nature of man, or so applicable to every state and circumstance, whether of prosperity or adversity, in which he can possibly be placed. But at the same time I lay it down as a fundamental axiom that "true Friendship can only subsist between those who are animated by the strictest principles of honour and virtue." When I say this, I would not be thought to adopt the sentiments of those speculative moralists who pretend that no man can justly be deemed virtuous who is not arrived at that state of absolute perfection which constitutes, according to their ideas, the character of genuine wisdom. This opinion may appear true, perhaps, in theory, but is altogether inapplicable to any useful purpose of society, as it supposes a degree of virtue to which no mortal was ever capable of rising.”

“Friendship improves happiness, and abates misery, by doubling our joys, and dividing our grief”

“A room without books is like a body without a soul.”