"Reason should investigate its own parameters before..." - Quote by Immanuel Kant

“Thoughts without content are empty, intuitions without concepts are blind.”

“It is presumed that there exists a great unity in nature, in respect of the adequacy of a single cause to account for many different kinds of consequences.”

“Reason must approach nature in order to be taught by it. It must not, however, do so in the character of a pupil who listens to everything that the teacher chooses to say, but of an appointed judge who compels the witness to answer questions which he has himself formulated.”

“There is always some madness in love. But there is also always some reason in madness.”

“Reason is the slow and torturous method by which those who do not know the truth discover it”

“If men will permit themselves to think, as rational beings ought to think, nothing can appear more ridiculous and absurd, exclusive of all moral reflections, than to be at the expence of building navies, filling them with men, and then hauling them into the ocean, to try which can sink each other fastester. Peace, which costs nothing, is attended with infintely more advantage than any victory with all its expence. But this, though it best answers the purpose of Nations, does not that of Court Governments, whose habited policy is pretence for taxation, places, and offices.”

“There are other places at which ... the laws have said there shall be towns; but Nature has said there shall not, and they remain unworthy of enumeration.”

“Why, headstrong liberty is lashed with woe.There's nothing situate under heaven's eyeBut hath his bound, in earth, in sea, in sky.”

“Adversity in immunological doses has its uses; more than that crushes.”