By Sound
Felix (FEE-liks) is crisp and bright. The opening syllable carries cleanly into Mandarin and does most of the heavy lifting. The "-liks" ending does not have a clean Mandarin equivalent, so the phonetic options let the first syllable lead.
By Meaning
Felix is Latin for happy, fortunate, blessed. It's not a name that strains. It arrives with a kind of built-in lightness. In living use it reads as someone things come naturally to, not because of luck exactly, but because of a quality they carry that tends to make things go well.
By Spirit
Felix Hernandez made it look effortless because it nearly was: pure mechanics, pure talent, nothing forced. Felix Baumgartner stepped out of a balloon at the edge of space and trusted it would be fine. Felix the Cat always lands on his feet, always finds a way. The throughline is a specific kind of ease: good fortune that isn't accidental, it's just who they are.