“Death and love are the two wings that bear the good man to heaven.”

Source: Death in the Afternoon (1932), Ch. 11

In response to his wife's question of what she should do if he died in battle, as he left for Thermopylae; as quoted in the "Sayings of the Spartan Women" http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Moralia/Sayings_of_Spartan_Women*.html in the Moralia
Variant translation: Marry a good man, and have good children.

在天願作比翼鳥
在地願為連理枝
天長地久有時盡
此恨綿綿無絶期
The last four lines.
"A Song of Unending Sorrow"

"A Tribe to Eban C. Ingersoll" (1879) http://www.gutenberg.org/files/38812/38812-h/38812-h.htm
Context: Life is a narrow vale between the cold and barren peaks of two eternities. We strive in vain to look beyond the heights. We cry aloud — and the only answer is the echo of our wailing cry. From the voiceless lips of the unreplying dead there comes no word. But in the night of Death Hope sees a star and listening Love can hear the rustling of a wing.

Source: Bridge of Birds

Source: The Magic Mountain (1924), Ch. 6
Context: I will keep faith with death in my heart, yet will remember that faith with death and the dead is only wickedness and dark voluptuousness and enmity against humankind, if it is given power over our thought and contemplation. For the sake of goodness and love, man shall let death have no sovereignty over his thoughts. And with that, I wake up.

Aber das ist wohl so, weil ein einzelner immer der Tod ist — und zwei Millionen immer nur eine Statistik.
Der schwarze Obelisk (1956)
A variant of this quote "One death is a tragedy. A million deaths is just a statistic." has also been attributed to Joseph Stalin, but no source for this has been found. This version appeared in the English press not later than 1958. (Ремарк, Эрих Мария // Словарь современных цитат / составитель К. В. Душенко — Москва: изд-во «Эксмо», 2006)

The Loyal Scot (1650-1652).