Buddhism, by its very nature, leads practitioners towards compassion for all beings…
Foundations
The Eightfold Path
Whoever makes endeavour for the riddance of wrong purpose, for the attainment of right purpose, that is his right endeavour. Mindful, he gets rid of wrong purpose; mindful, entering on right purpose he abides in it. That is his right mindfulness. Thus these three things circle round and follow after right purpose — that is to say: right view, right endeavour, right mindfulness…
The Four Noble Truths
And what is the ariyan truth of the arising of anguish? Whatever craving is connected with again-becoming, accompanied by delight and attachment, finding delight in this and that, namely the craving for sense-pleasures, the craving for becoming, the craving for annihilation — this is called the ariyan truth of the arising of anguish…
The Four Stages, by Ajahn Sumedho
Am I a non-returner? Will I ever become an arahant?’ This is the worldly mind grasping the concepts.
Loving kindness and equanimity, by Ajahn Sumedho
But metta is much deeper than just nice ideas and good thoughts, isn’t it? It is a way of receiving everything and allowing things to be what they are, both internally and externally…