彼は後人の育成に力を注いだ。
He devoted himself to training those who would come after him.
先輩として後人に道を開くのが我々の役目だ。
As seniors, it is our role to open the way for those who follow.
その研究は後人に多くの手がかりを与えた。
That research gave many leads to the researchers who came after.