Georg Wilhelm Friedrich Hegel

Life has a value only when it has something valuable as its object.

生命唯有以一件有价值之事为其目标时，才有价值。

Z historii uczymy się, że nie uczymy się z historii.

We learn from history that we do not learn from history.

What experience and history teach is this - that nations and governments have never learned anything from history, or acted upon any lessons they might have drawn from it. (Philosophy of History)