Vanity is something that will only get in the way of doing your best work, and ultimately if you're truly vain you care more about your work than how you look in your work. I actually consider myself a pretty vain guy when it comes to that. ↗
Accuracy is, in every case, advantageous to beauty, and just reasoning to delicate sentiment. In vain would we exalt the one by depreciating the other. ↗
Yet with great toil all that I can attain by long experience, and in learned schools, is for to know my knowledge is but vain, and those that think them wise, are greatest fools. ↗