பல்வேறு மொழி நாட்டு நூல்களின் வழி, புதிய செயல் திறங்களை அறிந்திருந்தாலும், தன் நாட்டின் இயற்கை மக்கள் இயல்பு ஆகியவற்றை அறிந்து அவற்றிற்கு ஏற்பச் செய்க.

செயலாற்றல் பற்றிய நூலறிவைப் பெற்றிருந்தாலும், உலக நடைமுறைகளை உணர்ந்து பார்த்தே அதற்கேற்றவாறு அச்செயல்களை நிறைவேற்ற வேண்டும்

நூலறிவால் செயலைச் செய்யும் வகைகளைச் அறிந்த போதிலும் உலகத்தின் இயற்கையை அறிந்து அதனோடு பொருந்துமாறு செய்யவேண்டும்.

Though you are acquainted with the (theoretical) methods (of performing an act), understand the ways of the world and act accordingly

Kural 637 emphasizes the importance of understanding and adapting to the practical realities and norms of the world, even when one is well-versed in the theoretical aspects of a task or action. The verse advises that while theoretical knowledge is essential, it is equally important to comprehend the practical nuances and methods of the world. One should not just rely on theoretical knowledge but also understand the ways of the world and adjust their actions accordingly. It implies that wisdom is not just about acquiring knowledge but also about applying it in a way that is pragmatic and aligned with the world's realities. It suggests a balance between theory and practice, between knowledge and wisdom, and between ideals and realities. This verse encourages practical wisdom, which involves applying theoretical knowledge in real-world contexts in a way that is effective and appropriate. In a broader perspective, this verse also underscores the importance of cultural sensitivity and context awareness. It highlights that actions, no matter how theoretically sound, need to be in sync with the societal norms and expectations to be effective and acceptable. In summary, this verse is a reminder that theoretical knowledge should be complemented with practical understanding and that one's actions should always be in line with the ways and norms of society.