Translation of "efficax" into English

Nimis multa enim contraria incitamenti vos impellunt, ut operam ex humana ratione efficacem imprimis conquiratis.

Too many contrary attractions lead one to seek first of all for a humanly effective activity.

Principia praescripta efficaces celeresque modos ad rem gerendam adhuc requirunt.

The principles which it proclaimed still await an efficient and flexible means of practical implementation.

Volumus denique, ut haec Constitutio Nostra firma et efficax semper sit et ab omnibus, ad quos pertinet, religiose servetur, contrariis quibuslibet nihil obstantibus.

Finally we decree that this Constitution of ours be firm and forever efficacious and be scrupulously observed by all concerned, notwithstanding any obstacles whatsoever.