People do not like to think. If one thinks, one must reach conclusions. Conclusions are not always pleasant.

As the eagle was killed by the arrow winged with his own feather, so the hand of the world is wounded by its own skill.

People often ... have no idea how fair the flower is to the touch, nor do they appreciate its fragrance, which is the soul of the flower.

Although the world is full of suffering, it is full also of the overcoming of it. My optimism, then, does not rest on the absence of evil, but on a glad belief in the preponderance of good and a willing effort always to cooperate with the good, that it may prevail.

Happiness is like the mountain summit. It is sometimes hidden by clouds, but we know it is there.

I 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.

Every modern war has had its roots in exploitation.