If we adopt a self-centered ...

If we adopt a self-centered approach to life, by which we attempt to use others for our own self interest, we might be able to gain temporary benefits, but in the long run we will not succeed in achieving even our personal happiness, and hope for the next life is out of the question.
If we adopt a self-centered approach to life, by which we attempt to use others for our own self interest, we might be able to gain temporary benefits, but in the long run we will not succeed in achieving even our personal happiness, and hope for the next life is out of the question.

Quotes from the same author

Material objects give rise to physical happiness, while spiritual development gives rise to mental happiness. Since we experience both physical and mental happiness, we need both material and spiritual development. This is why, for our own good and that of society we need to balance material progress with inner development.
With the realization of one's own potential and self-confidence in one's ability, one can build a better world.
It is difficult to achieve a spirit of genuine cooperation as long as people remain indifferent to the feelings and happiness of others.
There is no need for temples, no need for complicated philosophies. My brain and my heart are my temples; my philosophy is kindness.
I believe that we are fundamentally the same and have the same basic potential.