Karl Wilhelm Friedrich Schlegel said this quote

Wit is an explosion of the compound spirit.

~ Karl Wilhelm Friedrich Schlegel

An artist is he for whom the goal and center of life is to form his mind.

~ Karl Wilhelm Friedrich Schlegel

He who does not become familiar with nature through love will never know her.

~ Karl Wilhelm Friedrich Schlegel

Mathematics is, as it were, a sensuous logic, and relates to philosophy as do the arts, music, and plastic art to poetry.

~ Karl Wilhelm Friedrich Schlegel