Finally, 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 YoungerSome there are that torment themselves afresh with the memory of what is past; others, again, afflict themselves with the apprehension of evils to come; and very ridiculously both - for the one does not now concern us, and the other not yet ... One should count each day as a separate life.
Seneca the YoungerOn him does death lie heavily, who, but too well known to all, dies to himself unknown.
Seneca the YoungerTo give and to lose is nothing; but to lose and to give still is the part of a great mind.
Seneca the Younger