“Being cheerful and affable with people is by itself half of wisdom.”

“The most certain sign of wisdom is cheerfulness.”

“Please, trust me, I most definitely can be cheerful. I can be amiable. Agreeable. Affable. And that's only the A's. Just don't ask me to be nice. Nice has nothing to do with me.”

“Some people's affability is more deadly than the violence of coarser souls.”

“The spirit of true religion breathes gentleness and affability; it gives a native, unaffected ease to the behavior; it is social, kind, cheerful; far removed from the cloudy and illiberal disposition which clouds the brow, sharpens the temper, and dejects the spirit.”

“A prudent question is one-half of wisdom.”

“Loving one another is half of wisdom.”

“Half of wisdom is learning what to unlearn.”

“It turns out that one can perpetrate all manner of heinous villainy under a cloak of courtesy and good cheer… a man will forfeit all sensible self-interest if he finds you affable enough to share your company over a flagon of ale.”

“The most manifest sign of wisdom is a continual cheerfulness; her state is like that in the regions above the moon, always clear and serene.”