Reticence is the Seal of Capacity.

Reticence is the Seal of Capacity. A breast without a secret is an open letter. Where there is a solid foundation secrets can be kept profound: there are spacious cellars where things of moment may be hid. Reticence springs from self-control, and to controloneself in this is a true triumph. You must pay ransom to each you tell. The security of wisdom consists in temperance in the inner man. The risk that reticence runs lies in the cross-questioning of others, in the use of contradiction to worm out secrets, in the darts of irony: to avoid these the prudent become more reticent than before. What must be done need not be said, and what must be said need not be done.