Too much sensibility creates unhappiness; too much insensibility creates crime. [ Talleyrand ]

Strength with men is insensibility, greatness is pride, and calmness is indifference. [ George Sand ]

White men should exhibit the same insensibility to moral tortures that red men do to physical torments. [ Theophile Gautier ]

There are men who pride themselves on their insensibility to love: it is like boasting of having been always stupid. [ S. de Castres ]

Be free from grief not through insensibility like the irrational animals, nor through want of thought like the foolish, but like a man of virtue by having reason as the consolation of grief. [ Epictetus ]

Love is frightened at the intervals of insensibility and callousness that encroach by little and little Oxt the domain of grief, and it makes efforts to recall the keenness of the first anguish. [ George Eliot ]

A phlegmatic insensibility is as different from patience as a pool from a harbor; into the one, indolence naturally sinks us; but if we arrive at the other, it is by encountering many an adverse wind and rough wave, with a more skillful pilot at the helm than self, and a company under better command than the passions. [ L. W. Dilwyn ]