If you’re unwilling to earnestly, critically examine/scrutinize your beliefs, and discard them in failing that scrutiny or in light of new information, you are doomed to stagnate as a individual.
An important sentiment in these times of belligerent, entrenched ideologies imho.
Tbh I don’t watch much Dr. Who, but I did find myself liking Capaldi a lot the few times I watched his episodes