Habit-of-thought or habit-of-feeling can be trained to respond to surprise with "I must not be afraid," as easily as it is permitted to respond with the cowardly dictum, "I am afraid."
If one have the habit-of-fearthought in any form or degree, surprise may cause it to inspire rash action which may end in disaster. More lives are lost through jumping into danger under the impulse of fearthought, than are ever saved by it. Calm forethought is the better friend in a case of peril than quaking fearthought.
I must not be afraid!
Fearthought is a dissembler.
Fearthought is a very dangerous enemy, because it habitually masquerades in the garb of forethought.
Many earnest persons who desire to cultivate only the best thought, believe that fearthought is forethought, and invite and nurse it as such.
The lexicographers even, have failed to separate fearthought from forethought, and hence it does not appear in the dictionaries under its specific descriptive appellation.