I was angry with my friend:
I told my wrath, my wrath did end.
I was angry with my foe:
I told it not, my wrath did grow

And I watered it in fears
Night & morning with my tears;
And I sunned it with smile
And with soft deceitful wiles.

And it grew both day and night
Till it bore an apple bright
And my foe beheld it shine
And he knew that it was mine.

And into my garden stole,
when the night had veiled the pole;
In the morning glad I see
My foe outstretched beneath the tree.

William Blake