“Those who are too smart to engage in politics are punished by being governed by those who are dumber.”
“Be kind, for everyone you meet is fighting a harder battle.”
“Wise men talk because they have something to say; fools, because they have to say something.”
“Opinion is the medium between knowledge and ignorance.”
“I know not how I may seem to others, but to myself I am but a small child wandering upon the vast shores of knowledge, every now and then finding a small bright pebble to content myself with”
“Love is a serious mental disease.”
“People are like dirt. They can either nourish you and help you grow as a person or they can stunt your growth and make you wilt and die.”
“Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of a lover, everyone becomes a poet.”
“He whom love touches not walks in darkness”
Reference: http://thinkexist.com/quotes/plato/