Humility - What is it?

E3 we have talked a little about "Humility" this term. We have learnt that being humble means thinking of others and their needs, putting them before us. The following verse taught us this:

"Don't do anything only to get ahead. Don't do it because you are proud. Instead, be free of pride. Think of others as better than yourselves.
None of you should look out just for your own good. You should also look out for the good of others."
Philippians 2:3-4


Have a look at the following picture and read John 13:4-15.
What has this scripture got to do with being humble?