Quotes from Ludwig Boltzmann

In my view all salvation for philosophy may be expected to come from Darwin's theory

Bring forward what is true. Write it so that it is clear. Defend it to your last breath.

Thermodynamics, correctly interpreted, does not just allow Darwinian evolution; it favors it.

Available energy is the main object at stake in the struggle for existence and the evolution of the world.

The life contest is primarily a competition for available energy.

Bring forward what is true. Write it so that it is clear. Defend it to your last breath.

The general struggle for existence of animate beings is not a struggle for raw materials – these, for organisms, are air, water and soil, all abundantly available – nor for energy which exists in plenty in any body in the form of heat, but a struggle for [negative] entropy, which becomes available through the transition of energy from the hot sun to the cold earth.

Available energy is the main object at stake in the struggle for existence and the evolution of the world.