Suspicions amongst thoughts, are like bats amongst birds, they ever fly by twilight. Certainly they are to be repressed, or at least well guarded: for they cloud the mind; they leese friends; and they check with business, whereby business cannot go on currently and constantly. They dispose kings to tyranny, husbands to jealousy, wise men to irresolution and melancholy. They are defects, not in the heart, but in the brain; for they take place in the stoutest natures.

Of Suspicion. - Essays (1625)