Multiple opinions reveal pitfalls
Nahj al-Balāgha|Volume 1|Book 3|Chapter 173
١٧٣. وَقَالَ (عليه السلام): مَنِ اسْتَقْبَلَ وُجُوهَ الْآرَاءِ عَرَفَ مَوَاقِعَ الْخَطَاَ.
173. Amīr al-mu’minīn, peace be upon him, said: He who has several opinions understands the pitfalls.