Right from the moment of our birth, we are under the care and kindness of our parents, and then later on in our life when we are oppressed by sickness and become old, we are again dependent on the kindness of others. Since at the beginning and end of our lives we are so dependent on other's kindness, how can it be in the middle that we would neglect kindness towards others?
Dalai LamaIn 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 Lama