Kant, Immanuel

"Enlightenment is man's emergence from his self-incurred immaturity."

"Two things fill me with constantly increasing admiration and awe: the starry heavens above and the moral law within."

"I had to deny knowledge to make room for faith."

"Nothing is divine except what is moral."

"The possession of power inevitably spoils the exercise of it."

"Act in such a way that you treat humanity, whether in your own person or in the person of any other, never merely as a means to an end, but always at the same time as an end."

"Mathematics is the science of the infinite; its subject is intuition."

"Immaturity is the inability to use one's understanding without guidance from another."

"The greatest good of a people is ethical freedom."

"Beauty is the flower of virtue."

"We cannot feel respect for a man who grovels before us."

"Duty is the necessity of acting from respect for law."

"The unexamined life may not be worth living, but the unlived life is surely not worth examining."

"Thoughts without content are empty; intuitions without concepts are blind."

"Genius is the ability to independently arrive at and understand concepts that would normally have to be taught."

"The practical man is a theorist upon a small scale."

"Patience is the virtue of the strong and the vice of the weak."

"A person is free only when living under laws that one prescribes to oneself."

"Man is the sole being that finds his own being problematic."

"The understanding requires concepts to think; sensibility requires intuitions to perceive."

"All our knowledge begins with the senses, proceeds then to understanding, and ends with reason."

"Freedom and a lottery ticket cannot both be objects of desire."

"The pleasure of those who occupy themselves with intellectual pursuits is incomparably greater than that of the sensualist."

"It is not the possession of truth, but the success which attends the endeavor to find it, that enriches the seeker."

"Space and time are forms of human sensibility, not properties of things in themselves."

"The only unconditional good is a good will."

"Architecture should express the structure it conceals."

"A steady course is the only path to our destiny."

"We must always take seriously the questions posed by reason."

"The mind creates the forms through which experience is possible."