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

— Immanuel Kant, Critique of Pure Reason, 1781; 1787

About Immanuel Kant

1724 – 1804

German philosopher of the Enlightenment, author of the "Critique of Pure Reason".

“Have courage to use your own understanding!”

“Morality is not properly the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.”

“It is precisely in knowing its limits that philosophy consists.”

“For God made all mankind to be happy, to be serene.”

“We think a happy life consists in tranquility of mind.”

“Have I not found a happy earth? I least should breathe a thought of pain.”

“Happy the hare at morning, for she cannot read / The Hunter's waking thoughts.”

“I had a pleasant time with my mind, for it was happy.”

“Cease, every joy, to glimmer on my mind, But leave, oh! leave the light of Hope behind!”