selfish???

what selfish mean???
recenltly a lots of people arround me also said the same things
"human are selfish"
is that right??
few months ago, my answer wil be a YES
is definately YES

but now...i will not give any comment about that...
when YOU opens up the news, i believe that you all will see some news about
some unknown Hero(oor may b one hero)can sacrified their life to save a peaople
Human are selffish, but a mother can spent her whole life time for her family
a teacher can sacrified his life just to save a student life during earthquake happened
many of police died during the 911 incident, are they selfish??
many doctors died when SARS kill many peaople in HK, S'pore and so on...

human are selfish almost all of the time
but there's still some execption i think
ya, may be you the reader of the article will question me
is me a selfish people??
Yes, i admit that i will thik of myself during difficuties happen
but now i try to love others as GOD love me..
and i get hurt, trutly deeply get hurt on it....
but i promise myself to keep in faith on it

when we so subjective to think about this
to said that all human are selfish all the time
then this world had facing a serious problem
because you will turn yourselves to be selfish
since everyone also selfsih right???
so, why no we love everyone??
so that this world will full of loves....