Truth, beauty, and goodness are abstract concepts that correspond to our deepest desires. They are not likely to have evolved by a neo-Darwinian process.
The whole point of “fitness,” in an evolutionary context, is reproduction. One has higher “fitness” if one can have more offspring.
A fierce battle over a core principle of Darwinian theory has raged for decades, but you wouldn’t know it.
Cynics would call this kin selection or perhaps love of candy. I’d call it genuine love.
Based on new research by Joseph Thornton and Sean Carroll and colleagues, it increasingly appears that either we are very lucky or we are intelligently designed.