|Guilt and hurt. Not just the heart of having to give up on the love of his life but also the hurt of being judged and misunderstood by those with magic who are resentful because he had to turn a blind eye on them.|
Indeed! It must be awful to always stand the guilt, even if it's obvious that it was Uther who did it, and no one could have stopped him, and the only way to influence him was just to remain there, wait for the storm to calm down, and see what you can do.
Pretty much the advice Merlin gave to Morgana: as long as you're close to Uther, you might be able to sway him to the other side, or at least hope to save someone from him.
But Morgana acted out of passion, she just couldn't wait. She didn't have Gaius to teach her the value of being patient.
In fact, of all of them, Gaius is the most realistic person. Uther is a maniac and obsessed; Morgana is ruled by passions; Merlin is inexperienced and often rash and emotional, but not in Morgana's fashion - and he's often confused; Arthur is narcissistic and a bit shielded from reality. Maybe Guinevere is the only one with a similar mindset to Gaius', though she lacks his calmness, she panics easily.
|he always seems cautious, but what matters to him is actually surviving.He is probably the one (in Camelot) who has the greatest knowledge of magic, legends, secrets and whatnot. He has to be alive and alert to see most of those secrets through. Sometimes, having the meas and the knowledge is a huge responsibilty and a commitment for life.|
And he seems as a responsible scientist, doing it for the sake of greater good. It becomes pretty obvious in 3x03 that Gaius never charged much for his medicine, or at least, not more than was necessary for him. I think working for Royal Family got him a steady income, so working for common people was only a plus. And he never had to pay for Merlin's education, seeing that he's one of the most learned there.
|He is his nephew after all, remember?|
Yeah, I wish they would say it in the show more clearly. Hunith wouldn't turn to just about anyone for help. Family's family