A man never surfeits of too much honesty.

The saying treats honesty as a good that does not become harmful through abundance. However much integrity, frankness, or fair dealing a person has, it is presented as something one cannot rightly possess in excess. “Surfeits” is an archaic word meaning becomes sickened or satiated through excess.

It commends honesty by contrasting it with pleasures or possessions that can cloy when overindulged. The point is not that bluntness justifies needless cruelty under the label of frankness, but that honesty itself remains morally welcome rather than burdensome.

Use it to praise candour or principled conduct, especially when someone suggests that excessive honesty is a fault. Its old-fashioned wording suits reflective, literary, or proverbial discussion more readily than casual conversation, and it should not be used to excuse gratuitous harshness.