In theory one is aware that the earth revolves, but in practice one does not perceive it, the ground upon which one treads seems not to move, and one can live undisturbed. So it is with Time in one's life.

I didn't used to wear a watch. Now I have a SPOT watch, which I wear all the time.

They must often change, who would be constant in happiness or wisdom.

To love is so startling it leaves little time for anything else.

Homesickness is universal. But Neapolitan homesickness goes back further than the accidents of domicile. It is nostalgia for love and loss themselves, a soul-sickness caused by the very idea of leaving.