Cunning is neither the consequence of sense, nor does it give sense. A proof that it is not sense, is that cunning people never imagine that others can see through them. It is the consequence of weakness.
Horace WalpoleThe passions seldom give good advice but to the interested and mercenary. Resentment generally suggests bad measures. Second thoughts and good nature will rarely, very rarely, approve the first hints of anger.
Horace Walpole