The heart is everywhere, and each part of the organism is only the specialized force of the heart itself.

Since philosophy is the exploration of the rational, it is for that very reason the apprehension of the present and the actual, not the erection of a beyond, supposed to exist, God knows where, or rather which exists, and we can perfectly well say where, namely in the error of a one-sided, empty, ratiocination.

Mark this well, you proud men of action! you are, after all, nothing but unconscious instruments of the men of thought.

Every idea, extended into infinity, becomes its own opposite.

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.

The heart-throb for the welfare of humanity therefore passes into the ravings of an insane self-conceit, into the fury of consciousness to preserve itself from destruction; and it does this by expelling from itself the perversion which it is itself, and by striving to look on it and express it as something else.

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