Descartes: I think therefore I am.

Huineng: It's not the wind, it's not sports, it's the heart of the benevolent.

Zhu: Reason gives birth to everything.

Becquerel: Being is perceived, and things are a collection of ideas.

Mencius: Everything is ready except the east wind.

ProTegla: Man is the measure of everything.

Kant: Rational Legislation of Nature

Hegel: Being is reasonable.

Fichte: The world is self-created, not self.

Mach: Things are the combination of feelings.

Wang Shouren: Nothing is unreasonable outside the heart.