Sahana bhavatu

सहना भवतु
सहनौ भुनक्तु
सहा वीर्यम करवावहै
तेजस्विनाधित मस्तु
मा विद्विशावा है
ओम शांति शांति शांति :

Word-Word:
सहनाsahana= toleration;  भवतु bhavathu= let there be;
सहनौsahanau= with toleration; भुनक्तु bhunakthu= enjoy/bear/eat;
सहा saha= together; वीर्यमveeryam=energy; करवावहै kara+vavahi=(hands+carrying/doing) work;
तेजस्विनाधित tejasvinadheeta(तेजस्वी +अधीतtejas+adhita)= (splendour/radiance+learned)  vibrant/enlighten by learning; अस्तुasthu= let there be;
माmaa= no; विद्विषvidvish= enemy/animosity;अवाही avahi= invite/get;
ओम om= let there be; शांतिshanthi= peace; शांतिpeace; शांति : peace
Meaning:
Let there be toleration;
Let enjoyment/bear be with toleration/together;
Together with energy let hands do(work)
Without splendor let there be learned
Do not invite animosity
Let there be peace

Discussion:
This sloka is from Upanishads. I believe it is taught as a preliminary sloka before starting school/learning.  When we first start any class, we have "class rules of conduct". This sloka, according to me,  seems to have a tone of setting the conduct requirements in a gurukul/school.  Here are simple rules of conduct that can be applied in life too :).
1) We have to be tolerant to others. In other words, respect others.
2) Everything equally belongs to all. So be tolerant in enjoying. Everybody has a right to enjoy.
3)Together, with full energy, everybody should work.
4) enlighten each other, by learning.
5) Do not invite animosity.
6) Let there be peace! Be peaceful and let others be peaceful :).

It is interesting that it does have a greater scope than just the school.  This is my take on this sloka. Any comments that would help in better understanding of this sloka are welcome.

References
[1] http://aumamen.com/mantra/om-sahana-vavatu-shanti-mantra-lyrics-and-meaning
[2]