One should see the world, and see himself as a scale
with an equal balance of good and evil.
When he does one good deed the scale is tipped to the good
- he and the world is saved.
When he does one evil deed the scale is tipped to the bad
- he and the world is destroyed.
also known in Talmudic studies as RamBam
Mosheh ben Maimon
It is said of Moses Maimonides, the great Sephardic scholar and teacher:
"from Moses to Moses there was none like Moses".