A a non-Jew who posed a challenge to Shammai and Hillel
“Convert me on the condition that you teach me the entire Torah
while standing on one foot.”
Shammai throws him out of the room,
while Hillel accepts this challenge, explaining:
That which is hateful to you,
do not do to your peers —
this is the entire Torah.
All the rest is simply elaboration.
Go and study it.