Dear man, my friends must pardon me, my nisus forwards is so strong that I can seldom force myself to take breath, and cast a look backwards.
"The Youth of Goethe"
Peter Hume Brown
All that can be said is that there is a nisus in the right direction which is not wholly in vain, and that though tens of thousands of men and women of genius are as dandelion seeds borne upon the air and perishing without visible result, yet there is here and there a seed that really does take root and spring upwards to be a plant on the whole more vigorous than that from which it sprung.
"Ex Voto"
Samuel Butler
Distinct in clearest air is nisus seen Towering, and Scylla for the purple lock Pays dear; for whereso, as she flies, her wings The light air winnow, lo!
"The Georgics"
Virgil