“The tradition of all dead generations weighs like a nightmare on the brains of the living.”

I do not like money, money is the reason we fight.

There is no royal road to science, and only those who do not dread the fatiguing climb of its steep paths have a chance of gaining its luminous summits.

Your favourite virtue – Simplicity.

Follow your own path, no matter what people say.

Everyone of our relationships with nature and man must be a definite expression of our real, individual life.

Communism is for us not a state of affairs which is to be established, an ideal to which reality have to adjust itself.

The history of all hitherto existing society is the history of class struggles.

You must be aware that the reward for labour, and quantity of labour, are quite disparate things.

A people without a heritage are easily persuaded.

The abolition of religion as the illusory happiness of the people is the demand for their real happiness.

The full man does not understand the wants of the hungry.

History repeats itself, first as tragedy, second as farce.

Every opinion based on scientific criticism I welcome.

When the sufferers learn to think, then the thinkers will learn to suffer.

I wish to avenge myself against the One who rules above.

If you can cut the people off from their history, then they can be easily persuaded.

That brain of mine is something more than merely mortal, as time will show.

Whoever does not miss the Soviet Union has no heart. Whoever wants it back has no brain.

I’m not saying I’m gonna change the world, but I guarantee that I will spark the brain that will change the world.

Two key ingredients in any successful chef: a quick learner and someone with a sharp brain.

I am a brain, The rest of me is a mere appendix.

Learn to use your brain power. Critical thinking is the key to creative problem solving in business.

A man should keep his little brain attic stocked with all the furniture that he is likely to use, and the rest he can put away in the lumber room of his library, where he can get it if he wants it.

Let’s be open-minded, but not so open-minded that our brains drop out.