B-Hebrew: The Biblical Hebrew Forum

We read there:
וַיֹּאמֶר יהוה אֱלֹהִים הֵן הָאָדָם הָיָה כְּאַחַד מִמֶּנּוּ לָדַעַת טוֹב וָרָע וְעַתָּה פֶּן יִשְׁלַח יָדוֹ וְלָקַח גַּם מֵעֵץ הַחַיִּים וְאָכַל וָחַי לְעֹלָם וַיְשַׁלְּחֵהוּ יהוה אֱלֹהִים מִגַּן עֵדֶן לַעֲבֹד אֶת הָאֲדָמָה אֲשֶׁר לֻקַּח מִשָּׁם וַיְגָרֶשׁ אֶת הָאָדָם וַיַּשְׁכֵּן מִקֶּדֶם לְגַן עֵדֶן אֶת הַכְּרֻבִים וְאֵת לַהַט הַחֶרֶב הַמִּתְהַפֶּכֶת לִשְׁמֹר אֶת דֶּרֶךְ עֵץ הַחַיִּים 
KJV: "And the Lord God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:  Therefore the Lord God sent him forth from the garden of Eden, to till the ground from whence he was taken.  So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life."

Scientific discovery is either very easy, almost an afterthought, or impossible. Not much in between.

Isaac Fried, Boston University

The greatest medical discovery ever, the saver of the greatest number of human lives by far, inoculation, otherwise known as vaccination (from Lat. vacca, French vache, 'cow') was invented by illiterate milking maids.

Isaac Fried, Boston University