He who relies solely on his own opinion is taking a risk. خَاطَرَ مَنِ اسَتَغْنَى بَرْأْيِهِ.

خَاطَرَ مَنِ اسَتَغْنَى بَرْأْيِهِ.
He who relies solely on his own opinion is taking a risk.
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خَاطَرَ مَنِ اسْتَغْنَى بِرَأْيِهِ
أي: من اعتمد على رأيه وحده، ولم يستشر غيره، عرّض نفسه للخطأ والمخاطرة.
وأقرب مقابل إنجليزي مأثور هو:
“He who is his own counselor has a fool for a client.”
«من كان مستشار نفسه، كان أحمقَ موكِّله.»
وهذا قريب جدًا من المعنى؛ لأنه يحذّر من الاستغناء عن مشورة الآخرين والاعتماد على الرأي الشخصي وحده.
ومن الأمثال الإنجليزية الأشهر والأبسط:
“Two heads are better than one.”
«رأسان خير من رأس واحد.»
وهذا يوافق المعنى من الجهة الإيجابية: المشورة وتعدد الآراء خير من الاعتماد على رأي واحد.
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He who relies solely on his own opinion risks error and danger.
A similar English proverb is:
“He who is his own counselor has a fool for a client.”
This is very close in meaning, as it warns against disregarding the advice of others and relying solely on one's own opinion.
One of the most famous and simplest English proverbs is:
“Two heads are better than one.”
This aligns with the positive meaning: consultation and multiple opinions are better than relying on a single opinion.