trace

Nature does not know extinction; all it knows is transformation. … Everything science has taught me-and continues to teach me-strengthens my belief in the continuity of our spiritual existence after death. Nothing disappears without a trace ― Wernher von Braun

My happiest hours are those in which I think nothing, want nothing, when I do not even dream, but lose myself in some spurious vegetable torpor, moss growing on the surface of life. Without a trace of bitterness I savour my absurd awareness of being nothing, a mere foretaste of death and extinction ― Fernando Pessoa