References:
- G. K. Chesterton “Orthodoxy”https://www.amazon.com/Orthodoxy-G-K-Chesterton/dp/0898705525
- Dr. Stuart Brown “Play”https://www.amazon.com/dp/1583333789/ref=cm_sw_em_r_mt_dp_JKZVCMD60RARETVQ2ZED?
