Be careful to leave your sons well instructed rather than rich, for the hopes of the instructed are better than the wealth of the ignorant. 673
We are not to give credit to the many, who say that none ought to be educated but the free; but rather to the philosophers, who say that the well-educated alone are free. 598
If virtue promises happiness, prosperity and peace, then progress in virtue is progress in each of these for to whatever point the perfection of anything brings us, progress is always an approach toward it. 600
The essence of philosophy is that a man should so live that his happiness shall depend as little as possible on external things. 574
There is only one way to happiness and that is to cease worrying about things which are beyond the power of our will. 567
Not every difficult and dangerous thing is suitable for training, but only that which is conducive to success in achieving the object of our effort. 564