Do not be too much of a Dove.

Do not be too much of a Dove. Alternate the cunning of the serpent with the candour of the dove. Nothing is easier than to deceive an honest man. He believes in much who lies in naught; who does no deceit, has much confidence. To be deceived is not always due to stupidity, it may arise from sheer goodness. There are two sets of men who can guard themselves from injury: those who have experienced it at their own cost, and those who have observed it at the cost of others. Prudence should use as much suspicion as subtlety uses snares, and none need be so good as to enable others to do him ill. Combine in yourself the dove and the serpent, not as a monster but as a prodigy.