Tolerance is the first principle of community; it is the spirit which conserves the best that all men think.
Helen KellerIf I am happy in spite of my deprivations, if my happiness is so deep that it is a faith, so thoughtful that it becomes a philosophy of life. If, in short, I am an optimist, my testimony to the creed of optimism is worth hearing.
Helen KellerI know no study that will take you nearer the way to happiness than the study of nature - and I include in the study of nature not only things and their forces, but also mankind and their ways, and the moulding of the affections and the will into an earnest desire not only to be happy, but to create happiness.
Helen Keller