If goodness has causes, it is not goodness; if it has effects, a reward, it is not goodness either. So goodness is outside the chain of cause and effect.
Those who make their living by collecting taxes cause the people to starve; when the people starve, the tax collectors, having no one to tax, starve also
Malebranche teaches that we see all things in God himself. This is certainly equivalent to explaining something unknown by something even more unknown. Moreover, according to him, we see not only all things in God, but God is also the sole activity therein, so that physical causes are so only apparently; they are merely occasional causes. ( Recherches de la vérité , Livre VI, seconde partie, chap. 3.) And so here we have essentially the pantheism of Spinoza who appears to have learned more from Malebranche than from Descartes.
Undeserved praise causes more pangs of conscience later than undeserved blame, but probably only for this reason, that our power of judgment are more completely exposed by being over praised than by being unjustly underestimated.