All believers are but brethren. Hence, [whenever they are at odds,] make peace between your two brethren, and remain conscious of God, so that you might be graced with His mercy.
Al-Hujurat (The Dwellings) Verse 10
The Prophet used to take care of us in preaching by selecting a suitable time, so that we might not get bored. (He abstained from pestering us with sermons and knowledge all the time).
Sahih Bukhari: Volume 1, Book 3, Number 68