Honest Living and LaborThey who eat the fruit of their own labor and share with others are the people who have found the right way, O Nanak.
Man becomes what he loves best.
Equality of GenderHow can you call woman inferior, She is the one who gives birth to great men.
ServiceThere can be no love of God without active service
When one does active service in this world, then alone he achieves salvation
Those who meditate on Him, serve humanity
Unity of MankindWe all have common father, so we are all his children
There is only one human race
Truthful LivingTruth is higher than everything, but higher still is truthful living
Self RealizationOne who knoweth one's own self, recogniseth God
By conquering the mind thou shalt conquer the whole world
One who knoweth the meaning of soul, knoweth Supreme Essence
On my soul thou hast emanated from the Light of God, know thy true essence
The supreme lord is realizable within the soul
EgoismEgoism is deep-rooted disease (causing suffering) When mind is defiled with sin, it is purified by the love of the Name.
The perverse cannot offer devotion from their hearts, they are destroying themselves in ego
PrayerPrayers from the true heart never go in vain.
The mind's pain goeth when one offereth praises to Him in one's prayers.
Human RelationsLet all be called high, as no one seemteth low.
From one light hath come the whole world, so who is good and who is bad.
Measure the value of people in terms of their spiritual stature, and not in terms for their caste.
Every work or profession is noble if performed in the right way.
Sweetness and humility are the essence of all goodness and virtue.
Source:
http://www.infoaboutsikhs.com/guru_granth_sahib_teachings.htm