Leibniz argued nothing in the universe happens for no reason at all

Gottfried Leibniz's Principle of Sufficient Reason holds that every fact, event and existing thing must have a reason why it is so and not otherwise, even when that reason is far beyond human knowledge. He used it to argue that God must have had a sufficient reason to create this particular universe rather than any other possible one. Philosophers still argue whether the principle is a genuine law of reality or faith masquerading as logic; some defend it, others reject it outright.

— Gottfried Wilhelm Leibniz, Monadology — 1714
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