• Do not sow seeds or plant trees in barren land, for they will not bear fruit. In other words, do not show kindness to an ungrateful person. Just as seed is wasted in a barren land, so too is any kindness shown to an ungrateful person; but do not withhold kindness from those who deserve it. (Qabusname)
• If you can't do good, at least guide people towards good. It has been said, "If someone guides someone to good, it is as if they have done that good deed." (Qabusname)
• My brothers, yesterday he died, today he dies. Tomorrow has not yet come. Appreciate today. (Bişr-i Hafi)
• If you have a mind, make friends with another mind and do your work by consulting with them… (Mevlana)
• Play seems to be unreasonable, but children become wiser through play. (Mevlana)
• Yesterday has passed. Just like yesterday, yesterday's words have passed. Today, we need to say something brand new. (Mevlana)
• If you tie two living birds together, they cannot fly even though they have four wings, because there is duality. (Mevlana)
• Man is superior to animals by speaking; but if you do not speak correctly, animals will be superior to you. (Sheikh Sadi Shirazi)
• Even if a wolf grows up with a human, its cub will still be a wolf. (Sheikh Sadi Shirazi)