I resolved that because I had no ancestry myself I would leave a contribution to humanity of which my children would be proud, and which might encourage them to still higher ambition.

• 我决定，因为我自己没有祖先，我就要给人类留下一份贡献，我的孩子们将会为此而感到自豪，这份贡献也将鼓励他们具有更崇高的抱负。