If the Romans had been obliged to learn Latin, they would never have found time to conquer the world. Heinrich Heine
Had we not loved ourselves at all, we could never have been obliged to love anything. So that self-love is the basis of all love. Thomas Traherne
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use. Galileo Galilei
Truth is stranger than fiction, but it is because Fiction is obliged to stick to possibilities; Truth isn't. Mark Twain
A priest is a man who is called Father by everyone except his own children who are obliged to call him Uncle. Italian Proverb
A man is obliged to beat his own chest when he has no drum. African Proverb