महाभारत - सभा - श्रेयः समाचरेत्

न व्याधयो नापि यमः प्राप्तुं श्रेयः प्रतीक्षते ।
यावदेव भवेत् कल्पस्तावच्छ्रेयः समाचरेत् ॥

- महाभारत, सभा

na vyAdhayo nApi yama prAptum shreyaH patIkShate ।
yAvadeva bhavet kalpaH tAvat shreyaH samAcharet ॥

- mahAbhArata, sabhA

Illness or Death do not wait for a man to accumulate good Karma by doing good things over time. So, do not wait longer. Keep on doing good as and when such opportunity arises.

- Mahabharata, Sabha