What standards should be adopted to measure true greatness?

The true greatness of man is to be measured not by the amount of wealth nor by the number of bungalows which are had or by the exercise of personal influence, but by the degree of selflessness, all-embracive outlook, generosity, liberal views, cosmic benefaction, self-sacrifice, egoless, self-effacing nature, grade of perception of unity in diversity, humanitarian services, etc. A truly great man is pious, spiritually elevated, magnanimous and noble-hearted. He can never have a thought for himself and he ever prefers the welfare of humanity casting aside all petty, selfish and personal interests. He ever prays for the welfare of humanity. Where there is an open, unconstricted, expansive and large heart, there lies true greatness.

Swami Sivananda