"The wise man can change his mind;..." - Quote by Immanuel Kant

“Freedom is independence of the compulsory will of another, and in so far as it tends to exist with the freedom of all according to a universal law, it is the one sole original inborn right belonging to every man in virtue of his humanity.”

“Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.”

“Philosophical knowledge is the knowledge gained by reason from concepts ; mathematical knowledge is the knowledge gained by reason from the construction of concepts.”

“Early to bed and early to rise makes a man healthy, wealthy and wise.”

“The well bred contradict other people. The wise contradict themselves.”

“The superior man, when resting in safety, does not forget that danger may come. When in a state of security he does not forget the possibility of ruin. When all is orderly, he does not forget that disorder may come. Thus his person is not endangered, and his States and all their clans are preserved.”

“How many of us persist in a precipitate course which, but for a moment of heedlessness we might never have entered upon, simply because we hate to change our minds.”

“Few there were who could change his courses by counsel. None by force.”

“Thank me no thankings, nor proud me no prouds.”