Careful Words

conceal (v.)

  Men use thought only as authority for their injustice, and employ speech only to conceal their thoughts.

Alain René Le Sage (1668-1747): Dialogue xiv. Le Chapon et la Poularde (1763).

Where Nature's end of language is declin'd,

And men talk only to conceal the mind.

Edward Young (1684-1765): Love of Fame. Satire ii. Line 207.