644: Were Past Civilizations More Advanced?

if equal affection cannot be, let the more loving one be me / selflessness doesn't deny the need for adherence to dharmic principles / Sri Chaitanya's unconditional love / there will never be enough validation from others to make me feel whole / Xenotransplantation - is it possible to transplant a goat's head to a human? / is it possible that past civilizations were more advanced? / we've got to throw out our material attachments to receive the more valuable treasures

SB 4.7.1-6