With thieves I consort, With the vilest, in short, I'm quite at ease in depravity; Yet all divines use me, And savants can't lose me, For I am the center of gravity.

Why this works

This riddle cleverly plays with the dual meanings of the phrase "the center of gravity." At first glance, it seems to evoke a serious concept in physics, but the answer is actually the letter "V," which is literally at the center of the word "gravity." The riddle also hints at the letter's association with negative connotations, as it appears in words like "thieves" and "vilest," while still being essential for "divines" and "savants," showcasing its versatile presence in language. It's a fun twist that leads you to think about letters in a new way!