Prepare the child for the road, not the road for the child.

FOLK WISDOM, origin unknown

Your worst enemy cannot harm you as much as your own thoughts, unguarded. But once mastered, no one can help you as much, not even your father or your mother.

BUDDHA, Dhammapada¹

The line dividing good and evil cuts through the heart of every human being.

ALEKSANDR SOLZHENITSYN, The Gulag Archipelago²