Whether you believe in God or not does not matter so much, whether you believe in Buddha or not does not matter so much; as a Buddhist, whether you believe in reincarnation or not does not matter so much. You must lead a good life. And a good life does not mean just good food, good clothes, good shelter. These are not sufficient. A good motivation is what is needed: compassion, without dogmatism, without complicated philosophy; just understanding that others are human brothers and sisters and respecting their rights and human dignity.
Dalai LamaThe nature of the mind is such that if certain mental qualities are developed on a sound basis, they not only remain, but they also increase. In fact, once properly developed, the mind's good qualities eventually increase indefinitely. Therefore spiritual practice brings us long-term happiness and inner strength.
Dalai Lama