How important is it to do that? Sincere commendation does for a learner what water does for a plant ​ — it makes him thrive. ​ — Compare Matthew 3: 17.
لِأَنَّ ٱلْمَدْحَ ٱلصَّادِقَ يُسَاعِدُهُ عَلَى ٱلنُّمُوِّ كَمَا تُنْمِي ٱلْمِيَاهُ ٱلنَّبْتَةَ .‏ —‏ قارن متى ٣ :‏ ١٧‏ .‏