Providence vs. us - the mortals

Where we go wrong, if you ask me, is in not entrusting ourselves enough to the Heaven and in expecting more from our own conduct of affairs than rightly belongs to us. That explains why our schemes so often go awry. Heaven is jealous of the scope which we allow to the rights of human wisdom to the prejudice of its own: the more we extend them the more Heaven cuts them back.

Michel de Montaigne - Essays, On physiognomy (III, 12)