The discipline for developing both gentleness toward ourselves and appreciation of our world is the sitting practice of meditation. The practice of meditation was taught by the Lord Buddha over twenty-five hundred years ago. It is based on an oral tradition: from the time of the Buddha, this practice has been transmitted from one human being to another. In this way, it has remained a living tradition. So although it is an ancient practice, it is still up to date.
From "Discovering Basic Goodness," in The Sanity We Are Born With: A Buddhist Approach to Psychology, page 20.