>> Laziness and cowardice are the reasons why so great a proportion of men ... It is so easy to be immature. If I have a book to serve as my understanding, a pastor to serve as my conscience, a physician to determine my diet for me, and so on, I need not exert myself at all. I need not think, if only I can pay: others will readily undertake the irksome work for me.
This is beautiful in its simplicity and still has a piece of truth. But a more elaborate modern take would be probably that we also have finite resources. I do believe for instance that the earth surface is spherical, although I cann't immediately come up with an argument to prove this. I have not personally traveled around the world in a boat or launched satellites.
It seems that there is fundamentally no choice but to trust some people or traditions of thought on some things and then somehow to decide when to start doubting. Which is why fake news is a problem, for instance.