Though nature be ever so generous, yet can she not make a hero alone. Fortune must contribute her part too; and till both concur, the work cannot be perfected.
— Francois de la Rochefoucauld

In a recent decision of the Supreme Court, not made, however, by the full court, and concurred in by only four justices, it was held that the seller of a patented mimeograph could bind the purchaser to use only his ink in the machine, though the ink was not patented.
John Bates Clark concurs quote

I agree with you, Mr. Chairman, that the working men are the basis of all governments, for the plain reason that they are the more numerous, and as you added that those were the sentiments of the gentlemen present, representing not only the working class, but citizens of other callings than those of the mechanic, I am happy to concur with you in these sentiments, not only of the native born citizens, but also of the Germans and foreigners from other countries.
— Abraham Lincoln

When we want to know God's will, there are three things which always concur: the inward impulse, the Word of God and the trend of circumstances. Never act until these three things agree.
— F. B. Meyer

All handling by IPCC of the Sea Level questions have been done in a way that cannot be accepted and that certainly not concur with modern knowledge of the mode and mechanism of sea level changes.
— concurs quotation by Nils-Axel Morner