Careful preparation is the key to simplicity and clarity. An unprepared minister tends to talk too much.
وَمَعَ أَنَّهُ قَدْ يَعْرِفُ ٱلْكَثِيرَ مِنَ ٱلتَّفَاصِيلِ ٱلشَّيِّقَةِ عَنِ ٱلْمَوْضُوعِ ،‏ يَقْتَضِي ٱلْوُضُوحُ عَدَمَ ٱلتَّطَرُّقِ إِلَى مَعْلُومَاتٍ غَيْرِ ضَرُورِيَّةٍ .‏