"Part of spiritual and emotional maturity is recognizing that it's not like you're going to try to fix yourself and become a different person. You remain the same person, but you become awakened."
- Jack Kornfield

From the poem/song 'Desiderata':

Go placidly amid the noise and haste,
And remember what peace there may be in silence.
As far as possible without surrender,
Be on good terms with all persons.
Speak your truth quietly and clearly,
And listen to others,
Even the dull and ignorant,
They too have their story.

http://youtu.be/3bUTcy6w2Rw

"A mature person is one who does not think only in absolutes, who is able to be objective even when stirred emotionally, who has learned that there is both good and bad in all people and things, and who walks humbly and deals charitably."
- Eleanor Roosevelt

Emotional maturity is demonstrated by how kindly you treat those who mistreat or misunderstand you.

From the Holy Bible (ESV), Romans 12:14-18:
Bless those who persecute you; bless and do not curse them. Rejoice with those who rejoice, weep with those who weep. Live in harmony with one another. Do not be haughty, but associate with the lowly. Never be wise in your own sight. Repay no one evil for evil, but give thought to do what is honorable in the sight of all. If possible, so far as it depends on you, live peaceably with all.