It says:
"Don't Cut Down Others"
It's far better to build people up then to tear them down.
Jut like with trees, it's better to plant a trillion trees than deforest the Amazon Rainforest.
Trees are life and people are life.
Be constructive and not destructive.
Offer a nice word or compliment; provide an attentive and empathetic ear; give direction with some advice or guidance; lend a hand to someone in need; and in general, be a good influence.
Unfortunately, too many people default to cutting down the old cherry tree! ;-)
(Credit Photo: Andy Blumenthal)