"Forget the idea that thinking is somehow a painful and laborious feeling in the mind, a kind of headache that is best avoided if possible. Thinking is fun. By fun here I do not really mean a diversion that affords enjoyment. For the word also means an activity that engages one's interest or imagination, an activity that may prove to be more than a diversion and may involve challenge and hard work but is still a source of enjoyment. If you come to love thinking for yourself you will learn naturally to do it well." - John Adair