People
Only God can make a tree; but only Man can drive by one so fast.
— P. J. O'Rourke

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The first half sounds like praise for a tree's creation; the second proudly offers human speed as a rival achievement. That odd comparison makes the boast funny. Making something beautiful and rushing past it are treated as if they belong in the same contest.
Context reviewed