Happy is he that is virtuous--Dhammapada.

To make an end of selfishness is happiness.--Udanavarga.

There is no happiness except in righteousness.--Attanagalu-vansa.

Full of love for all things in the world, practicing virtue in order
to benefit others--this man only is happy.--Fa-kheu-pi-u.

He that loveth iniquity beckoneth to misfortune.--Jitsu-go-kiyo.

Watch your thoughts.--Dhammapada.

Control your tongue.--Dhammapada.

Have a strict control over your passions.--Story of Sundari and Nanda.

The higher life maketh he known, in all its purity and in all its
perfectness.--Tevijja-sutta.

So imbued were they with lovingkindness that all the birds and animals
loved them and harmed them not.--Sama Jataka (Burmese version).

Compassionate and kind to all creatures that have
life.--Brahma-jala-sutta.

The birds and beasts and creeping things--'tis writ--
Had sense of Buddha's vast embracing love,
And took the promise of his piteous speech.