There is not, in my opinion, anything more mysterious in nature than this instinct in animals, which thus rise above reason, and yet fall infinitely short of it. – Joseph Addison
If men as individuals surrender to the call of their elementary instincts, avoiding pain and seeking satisfaction only for their own selves, the result for them all taken together must be a state of insecurity, of fear, and of promiscuous misery. – Albert Einstein
Make the most of your regrets never smother your sorrow, but tend and cherish it till it comes to have a separate and integral interest. To regret deeply is to live afresh. – Henry David Thoreau
In truth, politeness is artificial good humor, it covers the natural want of it, and ends by rendering habitual a substitute nearly equivalent to the real virtue. – Thomas Jefferson
