But altruism, fun, community and curiosity are also parts of human sociality and I propose that the Web is an existence proof that these capabilities can be amplified, as well.

但是，利他主义、享受乐趣、群体归属感和好奇心，同样也是人的社会性组成部分，我认为网络自身足以证明人类的这些行为也将得以放大。

youdao

If not exactly proof of the existence of God, this does at least suggest that even fallen companies can have some hope of resurrection.

ECONOMIST: Innovative things to do with a banana

The thought greets Vince Camden as he sits up in bed, frantic, casting around a dark bedroom for proof of his existence and finding only props: nightstand, dresser, ashtray, clock.

NPR: Excerpt: 'Citizen Vince'

Evidence, but not proof, of its existence was found by two earlier missions.

ECONOMIST: Spaceflight