What experience and history teach is this - that nations and governments have never learned anything from history, or acted on any lessons they might have drawn from it. Variant: What experience and history teach is this - that people and governments never have learned anything from history, or acted on principles deduced from it.

Science and knowledge, especially that of philosophy, came from the Arabs into the West.

Governments have never learned anything from history, or acted on principles deducted from it.

Propounding peace and love without practical or institutional engagement is delusion, not virtue.

To be aware of limitations is already to be beyond them.

Whatever happens, every individual is a child of his time; so philosophy too is its own time apprehended in thoughts. It is just as absurd to fancy that a philosophy can transcend its contemporary world as it is to fancy that an individual can overleap his own age, jump over Rhodes.

The evident character of this defective cognition of which mathematics is proud, and on which it plumes itself before philosophy, rests solely on the poverty of its purpose and the defectiveness of its stuff, and is therefore of a kind that philosophy must spurn