"If we live with the understanding of impermanence, we will cultivate and nurture our love. Only then it will last." 

 -Thich Nhat Hanh

"I realized that maybe you can't change the world by your actions alone, but you can change yourself. And when you did, the world around you might also change in the very act of attempting to understand you, just as we all try to understand each other." 
-Dr. John Francis

"One of the most beautiful qualities of true friendship is to understand and to be understood." 

-Lucius Annaeus Seneca

"If you can give up your former knowledge and understanding, thus making your heart open, not keeping anything at all on your mind, so you experience a clear empty solidity where speech and thought do not apply, you will directly merge with the fundamental source, sinking into the infinite, spontaneously attaining inherent wisdom that has no attainment."
-Yuanwu