Death is not extinguishing the light; it is putting out the lamp because dawn has come.

Rabindranath Tagore (1861-1941) Indian Bengali poet, philosopher [a.k.a. Rabi Thakur, Kabiguru]

(Attributed)

Alt trans: 
"Death is not extinguishing the light; it is only putting out the lamp because the dawn has come."
"Death is not extinguishing the light; it is putting out the lamp because dawn has come."
"Death is not extinguishing the light; it is putting out the lamp because the dawn has come."
"Nirvana is not the blowing out of the candle. It is the extinguishing of the flame because day is come."