A man's value to the community depends primarily on how far his feelings, thoughts, and actions are directed towards promoting the good of his fellows.
As long as there are sovereign nations possessing great power, war is inevitable.
I would not think that philosophy and reason themselves will be man's guide in the foreseeable future; however, they will remain the most beautiful sanctuary they have always been for the select few.
Every one who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the Universe-a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.
Out of clutter, find simplicity. From discord, find harmony. In the middle of difficulty lies opportunity.
If a man aspires towards a righteous life, his first act of abstinence is from injury to animals.