Today's Subhashita.

उपकर्तुं  कृतघ्नस्याप्युभयोरिति  भिदा  |
सद्यो हि विस्मरत्याद्यः कृतं पश्चातु पश्चिमः | - महासुभषितसंग्रह

भावार्थ -   एक कृतघ्न व्यक्ति ( किये गये उपकार पर कृतज्ञता व्यक्त
न करने वाला व्यक्ति ) के प्रति उपकार करने से दोनों पक्षों में  मतभेद
हो जाता  है , क्योंकि  ऐसा अकृतज्ञ व्यक्ति उपकार किये  जाने पर निश्चय
ही  बाद में शीघ्र ही उस उपकार को भूल जाता है |

Upakartumkrutaghnasyaapyubhayoriti  bhidaa.
Sadyo hi vismaratyaadyah krutam pashhaatu pashchimah.

Upakartum =  by doing a favour to.   Krutaghnasyaapyubhayoriti =
Krutaghnasya + api + ubhayoh +iti.    Krutaghnasya = an ungrateful
person's.    Api = even.    Ubhay oh - to both of them.    Iti = this.
Bhida = difference of opinion.    Sadyo = ,quickly.    Hi = surely.
Vismaratyaadyah =  vismarati + aadyah.    Vismarati = forgets.
Aadyah = older, earlier    Krutam = done.    Pashchaatu = afterwards.
Pashchimah = later on, being behind.

i.e.    By doing a favour to an ungrateful person, soon difference of
opinion develops among both of them, because afterwards such a
person  quickly forgets the favour  done to him.