Philosophy Quotes

"One geometry cannot be more true than another; it can only be more convenient."

"A mind is like a parachute; it works best when open."

"Every effect has a cause; every cause has a purpose."

"The test of a first-rate intellect is the ability to hold two opposed ideas and still function."

"Geometry will draw the soul toward truth and create the spirit of philosophy."

"Perfect forms exist beyond the material world."

"Lines that never meet teach us about infinity and separation."

"To divide a line is to divide the nature of unity."

"The tangent line touches perfection but never enters."

"The circumscribed figure contains the universe within."

"Hyperbolas exist in pairs, teaching us about duality."

"Perpendicularity is the highest form of disagreement."

"The segment is a piece of the greater whole."

"The universe operates according to laws as precise as a well-constructed mechanism."

"The laws of nature are the thoughts of God."

"All philosophy is written in this grand book - I mean the universe - which stands continually open to our gaze."

"Either God wants to abolish evil, and cannot; or He can, but does not want to."

"The mind of man is divided into two parts, one of which is rational, the other irrational."

"The Earth, though inhabited and, if animate, affected by the rest of the world and especially by the sun, is in so far a creature."

"The harmonies of the spheres are not heard by human ears, but they are nonetheless real."

"The celestial machine is not a divine organism but a divine clock."

"The mind's highest calling is to understand the mind of God."

"Nothing takes place in the world whose meaning is not that of some maximum or minimum."

"Philosophy begins with wonder and ends with understanding."

"Philosophy teaches us to question everything, even itself."

"The true logic of the world is the calculus of probabilities."

"Man's greatest delusion is his belief in his own free will, yet paradoxically, he must act as though it were true."

"The mind creates a model of the world, not the world itself."

"Philosophical speculation without mathematical rigor is mere fantasy."

"We are prisoners of our perspectives, limited by our instruments of perception."