humility- too many people think they should live life for themselves, always making themselves happy first, when they don't realize the amount of joy you can bring to your own life by thinking of others first!
Philippians 4:4-7 - Rejoice in the Lord always. I will say it again: rejoice! Let your gentleness be evident to all. The Lord is near. Do not be anxious about anything but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding will guard your hearts and minds in Christ Jesus.