"Experience praises the most happy the one who made the most people happy."
"Life can only be understood backwards but it must be lived forwards."Karl Marx on Soren Kierkegaard
"The only source of knowledge is experience."Karl Marx on Albert Einstein
"Experience: that most brutal of teachers. But you learn, my God do you learn."Karl Marx on C. S. Lewis
"Experience is simply the name we give our mistakes."Karl Marx on Oscar Wilde
"A man who carries a cat by the tail learns something he can learn in no other way."Karl Marx on Mark Twain
"The ruling ideas of each age have ever been the ideas of its ruling class."
"Art is always and everywhere the secret confession, and at the same time the immortal movement of its time."
"It is absolutely impossible to transcend the laws of nature. What can change in historically different circumstances is only the form in which these laws expose themselves."
"Necessity is blind until it becomes conscious. Freedom is the consciousness of necessity."
"The country that is more developed industrially only shows, to the less developed, the image of its own future."