Learn not to be tardy or sluggish in offering thanks
learn to offer thanks for each and every gift . . .
Ingratitude is the soul's enemy, a voiding of merits,
dissipation of the virtues,
wasting of benefits.
Ingratitude is a burning wind
that dries up the source of love,
the dew of mercy,
the streams of grace.

Esther de Waal, The Way of Simplicity