Practice makes us what we shall be.

Things do not grow better; they remain as they are. It is we who grow better, by the changes we make in ourselves.

True progress is slow but sure.

Capitalism is commodity production at the highest stage of development, when labor power itself becomes a commodity. The growth of internal exchange, and particularly of international exchange, is a special feature of capitalism. The uneven and spasmodic character of the development of individual enterprises, of individual branches of industry and individual countries, is inevitable under the capitalist system.

The things I've done in my life have required a lot of years of work before they took off.

Life is an instinct for growth, for survival, for the accumulation of forces, for power.