Only a great man, believe me, and one whose excellence rises far above human failings, will not allow anything to be stolen from his own span of time, and his life is very long precisely because he has devoted to himself entirely any time that became available. None of it lay uncultivated and idle, none was under another man's control, for guarding it most jealously, he found nothing worth exchanging for his own precious time.
Seneca the YoungerPhilosophy takes as her aim the state of happiness...she shows us what are real and what are only apparent evils. She strips men's minds of empty thinking, bestows a greatness that is solid and administers a check to greatness where it is puffed up and all an empty show; she sees that we are left no doubt about the difference between what is great and what is bloated.
Seneca the YoungerFinally, everybody agrees that no one pursuit can be successfully followed by a man who is preoccupied with many things-eloquence cannot, nor the liberal studies-since the mind, when distracted, takes in nothing very deeply, but rejects everything that is, as it were, crammed into it. There is nothing the busy man is less busied with than living: there is nothing that is harder to learn.
Seneca the Younger