In order to develop the willpower it takes to sacrifice, you must first realize that spending all your time and energy pursuing material comforts means you will eventually suffer. It's all about positive and negative consequences. It's very important to be aware that there are long-term consequences [for every action].
Dalai LamaOnce you develop confidence in your own ability, you'll be able to make a real contribution to creating a better world. Self-confidence is very important. Not in the sense of blind pride, but as a realistic awareness of what you can do. As human beings we can transform ourselves by our good qualities and reducing our faults. Our intelligence enables us to judge what is good from what is harmful.
Dalai Lama