The highest realms of thought are impossible to reach without first attaining an understanding of compassion.

If measure and symmetry are absent from any composition in any degree, ruin awaits both the ingredients and the composition... Measure and symmetry are beauty and virtue the world over.

The only true wisdom is in knowing you know nothing.

No citizen has any right to be an amateur in the matter of physical training; it is part of his profession as a citizen to keep himself in good condition... [It is] a disgrace for a man to grow old without seeing the beauty and the strength of which his body is capable.

I call that man idle who might be better employed.

To know thyself is the beginning of wisdom.

Think not those faithful who praise all thy words and actions, but those who kindly reprove thy faults.