Don't deprive them of their happiness

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."Love animals: God has given them the rudiments of thought and joy untroubled. Do not trouble their joy, don't harrass them, don't deprive them of their happiness, don't work against God's intent. Man, do not pride yourself on superiority to animals; they are without sin, and you, with your greatness, defile the earth by your apppearance on it, and leave the traces of your foulness after you - alas, it is true of almost every one of us!"

Quote by Dostoyevsky