to take it on the chin, to bite the bullet, to keep one's cool, to take it like a man, to suck it up

(transitive) to keep to oneself, to keep under one's hat

sure of oneself, self-assured, self-confident, confident

neat and tidy, trim, clean-looking, fit to be seen

end in itself (something that is desired for its own sake, and not as a means of obtaining something else)

privately, to oneself

self-love

self-confidence

every man for himself

(intransitive) to be self-evident, to be obvious, to go without saying, to stand to reason