“There are four: delaying of gratification, acceptance of responsibility, dedication to truth, and balancing. As will be evident, these are not complex tools whose application demands extensive training. To the contrary, they are simple tools, and almost all children are adept in their use by the age of ten. Yet presidents and kings will often forget to use them, to their own downfall. The problem lies not in the complexity of these tools but in the will to use them.”
