...the problem of rebirth of craving is the most universal, as well as the most significant and most urgent, for it pertains to all times, regardless of whether it be this moment, this life, or future lives if there are to be future lives. 

If one has solved this problem and is freed from craving, then all other problems cease to be problems, for with respect to them there is no longer any craving.

Shakyamuni Buddha (5c BCE-4c BCE), Gautama Buddha was a philosopher, mendicant, meditator, spiritual teacher, and religious leader who lived in Ancient India.