American mathematician (1921–2008).
Born December 13th, 1921 in Manhattan.
Died March 7th, 2008 at 86 years old in Berkeley. [ref]
When we finally know we are dying, and all other sentient beings are dying with us, we start to have a burning, almost heartbreaking sense of the fragility and preciousness of each moment and each being, and from this can grow a deep, clear, limitless compassion for all beings. Sogyal Rinpoche