कर्मायत्तं फलं पुंसां

कर्मायत्तं फलं पुंसां बुद्धिः कर्मानुसारिणी।
तथापि सुधिया भाव्यं सुविचार्यैव कुर्वता॥
karmāyattaṁ phalaṁ puṁsāṁ buddhiḥ karmānusāriṇī|
tathāpi sudhiyā bhāvyaṁ suvicāryaiva kurvatā||

The results are dependent on one's action, the intellect follows the action.
Even then, one acting after proper deliberation should use proper intellect."

(Thanks to shrI P. K. Ramakrishnan, UTAH Sanksrit Mailing List)

कर्मण्येवाधिकारस्ते

कर्मण्येवाधिकारस्ते मा फलेषु कदाचन।
मा कर्मफलहेतुर्भूर्मा ते सङ्गोस्त्वकर्मणि॥
— भगवद्गीता २-४७
karmaṇyevādhikāraste mā phaleṣu kadācana|
mā karmaphalaheturbhūrmā te saṅgostvakarmaṇi||
— bhagavadgītā 2-47

"Your right is to work only, but never to the fruit thereof.
Be not instrumental in making your actions bear fruit, nor let your attachment be to inaction."

योगः कर्मसु कौशलम्

बुद्धियुक्तो जहातीह उभे सुकृतदुष्कृते।
तस्माद्योगाय युज्यस्व योगः कर्मसु कौशलम्॥
buddhiyukto jahātīha ubhe sukṛtaduṣkṛte
tasmādyogāya yujyasva yogaḥ karmasu kauśalam

Endowed with equanimity, one sheds in this life both good and evil.
Therefore, strive for the practice of this Yoga of equanimity. Skill in action lies in (the practice of this) Yoga.

योगः कर्मसु कौशलम् is the slogan of Indian Institute of Technology, Kharagpur (IIT-KGP).