"No man should bring children into the world who is unwilling to persevere to the end in their nature and education."

"In order to find the truth, you must be willing to abandon all your previous beliefs."

"The citizen who is not governed will not be a good governor."

"Bodily exercise, when compulsory, does no harm to the body; but knowledge which is acquired under compulsion obtains no hold on the mind."

"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors."