Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy
Anybody can become angry - that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way - that is not within everybody's power and is not easy.
The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.
What it lies in our power to do, it lies in our power not to do.
The ideal man bears the accidents of life with dignity and grace, making the best of circumstances.
At his best, man is the noblest of all animals; separated from law and justice he is the worst.
My best friend is the man who in wishing me well wishes it for my sake.
If liberty and equality, as is thought by some, are chiefly to be found in democracy, they will be best attained when all persons alike share in government to the utmost.
The roots of education are bitter, but the fruit is sweet.
Education is an ornament in prosperity and a refuge in adversity.
Education is the best provision for old age.