Seneca on fear and imagination

This is the touchstone of such a spirit; no prizefighter can go with high spirits into the strife if he has never been beaten black and blue; the only contestant who can confidently enter the lists is the man who has seen his own blood, who has felt his teeth rattle beneath his opponent’s fist, who has been tripped and felt the full force of his adversary’s charge, who has been downed in body but not in spirit, one who, as often as he falls, rises again with greater defiance than ever. So then, to keep up my figure, Fortune has often in the past got the upper hand of you, and yet you have not surrendered, but have leaped up and stood your ground still more eagerly. For manliness gains much strength by being challenged; nevertheless, if you approve, allow me to offer some additional safeguards by which you may fortify yourself.

The quote: There are more things, Lucilius, likely to frighten us than there are to crush us; we suffer more often in imagination than in reality.

I am not speaking with you in the Stoic strain but in my milder style. For it is our Stoic fashion to speak of all those things, which provoke cries and groans, as unimportant and beneath notice; but you and I must drop such great-sounding words, although, Heaven knows, they are true enough. What I advise you to do is, not to be unhappy before the crisis comes; since it may be that the dangers before which you paled as if they were threatening you, will never come upon you; they certainly have not yet come.