مَن أكثَرَ الفِكرَ فيما تَعَلَّمَ أتقَنَ عِلمَهُ ، وفَهِمَ ما لم يَكُن يَفهَمُ . ح: 8917
Whoever increases his thinking in whatever he learns, his knowledge will become proficient, and he will come to understand whatever he did not understand before. H: 8917
مَن قَلَّ أكلُهُ صَفا فِكرُهُ . ح: 8462
Whoever eats less, their thought will be more purified. H: 8462
الفِكرُ في غَيرِ الحِكمَةِ هَوَسٌ . ح: 1278
Thinking outside [the bounds] of wisdom is fantasy. H: 1278
مَن كَثُرَ فِكرُهُ في المَعاصي دَعَتهُ إلَيها . ح: 8561
Whoever thinks much about sins, will be prompted to commit them. H: 8561
مَن تَفَكَّرَ في ذاتِ اللَّهِ أَلحَدَ . ح: 8487
He who contemplates in the essence of Allah becomes a disbeliever. H: 8487