The friend of nature is the man who feels himself inwardly united with everything that lives in nature, who shares in the fate of all creatures, helps them when he can in their pain and need, and as far as possible avoids injuring or taking life.
Albert SchweitzerVery little of the great cruelty shown by men can really be attributed to cruel instinct. Most of it comes from thoughtlessness or inherited habit. Extract from 'Memories of childhood and youth.'
Albert SchweitzerTo educate yourself for the feeling of gratitude means to take nothing for granted, but to always seek out and value the kindness that stands behind the action. Nothing that is done for you is a matter of course. Everything originates in a will for the good, which is directed at you. Train yourself never to put off the word or action for the expression of gratitude.
Albert Schweitzer