Back مبدأ العلة الكافية Arabic Principi de raó suficient Catalan Satz vom zureichenden Grund German Principio de razón suficiente Spanish Küllaldase aluse printsiip Estonian اصل دلیل کافی Persian Riittävän perusteen periaate Finnish Principe de raison suffisante French Բավարար հիմունքի օրենք Armenian Principio di ragion sufficiente Italian
The principle of sufficient reason states that everything must have a reason or a cause. The principle was articulated and made prominent by Gottfried Wilhelm Leibniz, with many antecedents, and was further used and developed by Arthur Schopenhauer and William Hamilton.