Thus he who both day and night
takes delight in harmlessness
sharing love with all that live,
finds enmity with none.
SN I 208

He who does not strike nor makes
others strike, who robs not nor makes
others rob, sharing love with all that lives,
finds enmity with none.
Itivuttaka 22

As a mother even with her life protects
her only son, so let one cultivate infinite,
 yeah universal, friendliness towards
all sentient, living & breathing beings.
 

When one with a mind of true affection
feels compassion for this entire world,
above, below and across,
unlimited everywhere.
 

The one who has left violence,
who never harm any being,
who never kill nor causes to kill,
such one, mild, is a Holy Noble One.
Dhammapada  405
 

The one who is friendly among the hostile,
who is harmless among the violent,
who is detached among the greedy,
such one is a Holy Noble One.
Dhammapada 406

He is not Noble who injures living beings.
He is called Noble because he is
gentle & kind towards all living beings.
Dhammapada 270
 

Tolerance is the highest training.
Patience  is the best praxis.
So all Buddhas say.
Dhammapada  184

Let no one deceive another
or despise anyone anywhere,
or through anger or irritation
wish for another to suffer.
Khuddakapatha 9

Solitude is happiness for one who is content,
who has heard the Dhamma and clearly sees.
Cordial non-violence is happiness in this world
harmlessness towards all living beings.
Udana 10