There's a huge difference between wisdom and knowledge. Wisdom can be gotten from experience only, but anyone can have knowledge and knowledge is eternal and ubiquitous. Knowledge does not need talent. It is human nature to learn things, for survival, but wisdom is an earned quality that is hard to get. Knowledge is a very sure thing - knowledge has to be discovered, and it doesn't change much over time, but wisdom is ever-changing, hence why it's so hard to get.
I can sit inside for the rest of my life reading books and researching, but that means I'll lose touch with the world. I can observe the world for my whole life and never retreat to fact, but that means I'll lose touch with the truth. We are easily swayed by peers and facts, so there's a need for balance between the two. It's also very subjective and personal, at that.