To achieve the ultimate goal of sreyas, or good fortune, one should engage everything, including his life, wealth and words, not only for himself but for others also. However, unless one is interested in sreyas in his own life, he cannot preach of sreyas for the benefit of others.
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The Bhagavatam says that it is the duty of an advanced human being to act in such a way as to facilitate human society's attainment of the ultimate goal of life.
- Srila Prabhupada
