What is the triple study or education taught by the Buddha?

According to Buddhism the triple study or education is:
1. The study of morality or good conduct (Silasikkha)
2. The study of mind or mental tranquillity (Cittasikkha)
3. The study of knowledge or spiritual insight (Pannasikkha).

The practice of this triple study will lead one to deliverance.

Triple Study, Education Taught by Buddha, Silasikkha, Cittasikkha, Pannasikkha, Study of Morality, Study of Mind, Study of Knowledge