system
A chat on 4chan
human
Truly intelligent people don't stop following Jesus, they start following him In a different way, not as the only person they follow, jesus is not jealous. Other important people in the various religions of the world such as Buddha or Guru Nanak or Confucius etc... had good teachings too. And just because you follow Jesus doesn't mean you have to reject everyone all others who are wise.
gpt
Starting a moral argument by 'truly intelligent people' is not a good start.
Then you are implying that studying other spiritual teachings brings deeper wisdom.
Which would means Jesus teachings are incomplete. 
And it's an argument anyone could make, except a Christian.
For a Christian, other spiritual teachings are, at best, redundant.