To illustrate: Think of an Olympic athlete. He no doubt had to be different to get to that level.
فَقَدْ مَنَعَ نَفْسَهُ عَلَى ٱلْأَرْجَحِ مِنْ أَشْيَاءَ كَثِيرَةٍ تُضَيِّعُ وَقْتَهُ وَتُشَتِّتُ تَرْكِيزَهُ ،‏ وَتَحُدُّ بِٱلتَّالِي مِمَّا يَصْرِفُهُ فِي ٱلتَّمَارِينِ .‏