The safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato.

It is the business of the future to be dangerous.

Civilization advances by extending the number of important operations we can perform without thinking about them.

The knowledge and contemplation of nature is somehow defective and incomplete unless action follows.

-- Panaetius

It is not learning that makes people good, but practice.

-- Gaius Musonius Rufus

It is the task of one rightly oriented toward others to draw the circles in toward the centre.

-- Hierocles

It is hard to retain what you learn unless you practice it.

-- Seneca

Waste no more time arguing about what a good man should be. Be one.

-- Marcus Aurelius

The philosopher must serve the gods not in words only, but in deeds as well.

-- Iamblichus