One verse

Srimad Bhagavatam 8.6.20

8.6.20

अरयोऽपि हि सन्धेया: सति कार्यार्थगौरवे । अहिमूषिकवद् देवा ह्यर्थस्य पदवीं गतै: ॥ २० ॥

arayo ’pi hi sandheyah sati karyartha-gaurave ahi-musikavad deva hy arthasya padavim gataih

arayah
enemies
api
although
hi
indeed
sandheyah
eligible for a truce
sati
being so
karya-artha-gaurave
in the matter of an important duty
ahi
snake
musika
mouse
vat
like
devah
O demigods
hi
indeed
arthasya
of interest
padavim
position
gataih
so being.

O demigods, fulfilling one’s own interests is so important that one may even have to make a truce with one’s enemies. For the sake of one’s self-interest, one has to act according to the logic of the snake and the mouse.