One verse

Srimad Bhagavatam 6.4.12

6.4.12

तोकानां पितरौ बन्धू द‍ृश: पक्ष्म स्त्रिया: पति: । पति: प्रजानां भिक्षूणां गृह्यज्ञानां बुध: सुहृत् ॥ १२ ॥

tokanam pitarau bandhu drsah paksma striyah patih patih prajanam bhiksunam grhy ajnanam budhah suhrt

tokanam
of children
pitarau
the two parents
bandhu
the friends
drsah
of the eye
paksma
the eyelid
striyah
of the woman
patih
the husband
patih
the protector
prajanam
of the subjects
bhiksunam
of the beggars
grhi
the householder
ajnanam
of the ignorant
budhah
the learned
su-hrt
the friend.

As the father and mother are the friends and maintainers of their children, as the eyelid is the protector of the eye, as the husband is the maintainer and protector of a woman, as the householder is the maintainer and protector of beggars, and as the learned is the friend of the ignorant, so the king is the protector and giver of life to all his subjects. The trees are also subjects of the king. Therefore they should be given protection.