Reason
Explore wisdom and insights from Reason
"Love is nothing but joy accompanied by the idea of an external cause."
Baruch Spinoza
"We can never be certain of anything unless we understand it completely."
Baruch Spinoza
Attributed
"Insofar as the mind understands all things as necessary, it has a power of affecting joy."
Baruch Spinoza
"The human body is composed of very many parts of diverse kinds."
Baruch Spinoza
"The mind's power of thinking is equal to its power of acting."
Baruch Spinoza
"Nature never orders us to hate ourselves."
Baruch Spinoza
"No one can be fundamentally denied the right to exist and enjoy life."
Baruch Spinoza
Attributed
"I am, I exist, is necessarily true whenever it is put forward by me or conceived in my mind."
Baruch Spinoza
"He who has a true idea simultaneously knows that he has a true idea."
Baruch Spinoza
"Joy is man's transition to a greater perfection."
Baruch Spinoza
"Sapere aude—Dare to know!"
Immanuel Kant
"I am never to act otherwise than so that I could also will that my maxim should become a law universal."
Immanuel Kant
"Man himself must make or have made himself into whatever he is to become."
Immanuel Kant
Attributed
"Two things fill the mind with ever-increasing wonder and awe: the starry heavens above and the moral law within."
Immanuel Kant
"Freedom consists in independence from the coercion of another's will."
Immanuel Kant
Attributed
"Act only according to that maxim whereby you can will it should become a universal law."
Immanuel Kant
"We can never know things as they are in themselves, only as they appear to us."
Immanuel Kant
"Out of the crooked timber of humanity, no straight thing was ever made."
Immanuel Kant
Attributed
"Enlightenment is man's emergence from his self-imposed nonage."
Immanuel Kant
"Nothing is truly valuable unless it comes from duty."
Immanuel Kant
"Cogito, ergo sum. I think, therefore I am."
René Descartes
"The reading of all good books is like a conversation with the finest minds."
René Descartes
"I am, I exist, whenever it is put forward by me or conceived."
René Descartes
"There is nothing so strange and so unbelievable."
René Descartes
Attributed
"Except our own thoughts, there is nothing absolutely in our power."
René Descartes
"The first precept was never to accept anything for true which I did not clearly know."
René Descartes
"When it is not in our power to follow what is true, we ought to follow what is most probable."
René Descartes
"Perfect knowledge consists in knowing things, not words."
René Descartes
Attributed
"Divide each difficulty into as many parts as is feasible."
René Descartes
"If you would be a real seeker of truth, doubt all things."
René Descartes