Virtue can be cultivated through voluntary, selfless service to the living beings. A virtuous person can be both healthy and happy. Virtue must flow through the triple channels of love, mercy and detachment, if it has to feed the roots of Service. Human beings are endowed with the instinct of gregariousness, in order to tread the path of mutual sympathy, continuous compassion and concrete service. Virtue is the panacea to lead a healthy and happy life. 

- Divine Discourse, Sep, 1980.

All help you render to others is service to the Self alone. - Baba