The Treasure Tower Chapter of the Lotus Sutra on what it really means to observe the precepts and practice the rules of discipline

"This sutra is hard to uphold; 
if one can uphold it even for a short while
I will surely rejoice /
and so will the other Buddhas. 
A person who can do this 
wins the admiration of the Buddhas. 
This is what is meant by valor, 
this is what is meant by diligence. 
This is what is called observing the precepts 
and practicing dhuta"