vaillant betyder på engelska

valiant▼◼◼◼(possessing or showing courage or determination)
adjective
[UK: ˈvæ.lɪənt] [US: ˈvæ.ljənt]He's a valiant soldier. = C'est un vaillant soldat.

stalwart▼◼◼◻(courageous)
adjective
[UK: ˈstɔːl.wət] [US: ˈstɒl.wərt]

lucubrate [lucubrated, lucubrating, lucubrates]▼(work diligently by artificial light; to study at night)
verb
[UK: ˈluː.kjuː.breɪt] [US: ˈluː.kjʊ.ˌbreɪt]

where there is a will there is a way▼(if someone wants or wills something strongly enough, a way can be found)
phrase