Men's minds tend to fear more keenly those things that are absent.
The Celts were fearless warriors because they wish to inculcate this as one of their leading tenets, that souls do not become extinct, but pass after death from one body to another...
As a result of a general defect of nature, we are either more confident or more fearful of unusual and unknown things.
Go on, my friend, and fear nothing; you carry Caesar and his fortune in your boat.
In extreme danger fear feels no pity. [Lat., In summo periculo timor miericordiam non recipit.]
It is not these well-fed long-haired men that I fear, but the pale and the hungry-looking.