"Metaphysics involves intuitive knowledge of unprovable starting-points..." - Quote by Aristotle

“Wishing to be friends is quick work, but friendship is a slow ripening fruit.”

“The roots of education are bitter, but the fruit is sweet.”

“It is well said, then, that it is by doing just acts that the just man is produced, and by doing temperate acts the temperate man; without doing these no one would have even a prospect of becoming good. But most people do not do these, but take refuge in theory and think they are being philosophers and will become good in this way, behaving somewhat like patients who listen attentively to their doctors, but do none of the things they are ordered to do.”

“You need some knowledge to recognize knowledge, so where does the first knowledge come from?”

“True philosophy must start from the most immediate and comprehensive fact of consciousness: "I am life that wants to live, in the midst of life that wants to live."”

“Revolution, in order to be creative, cannot do without either a moral or metaphysical rule to balance the insanity of history.”

“Some are born with knowledge, some derive it from study, and some acquire it only after a painful realization of their ignorance. But the knowledge being possessed, it comes to the same thing. Some study with a natural ease, some from a desire for advantages, and some by strenuous effort. But the achievement being made, it comes to the same thing.”

“We understand why children are afraid of darkness ... but why are men afraid of light?”

“There is a chasm between knowledge and ignorance which the arches of science can never span.”