I believe that this hairless embryo with the aching, oversize brain case and the opposable thumb, this animal barely up from the apes, will endure —will endure longer than his home planet, will spread out to the other planets, to the stars, and beyond, carrying with him his honesty, his insatiable curiosity, his unlimited courage —and his noble essential decency. This I believe with all my heart.

Grumbles from the grave (ed. Del Rey, 1990)