true fruit

They open as nuts do, and then you will find a kernel inside which is the true fruit.’

From The Desert Home The Adventures of a Lost Family in the Wilderness by Mayne Reid

That is, I have planted the seed that will produce the true fruit, and it is for others only to cultivate and nourish what I have planted.

From The Christ Of Paul Or, The Enigmas of Christianity by George Reber

There were others who believed that the Christian moral system must remain, because it had commended itself to man's nature as the highest and best and was the true fruit of evolutionary progress.

From Gilbert Keith Chesterton by Maisie Ward

The true fruit is round, or oval, or elongated, sometimes pear-shaped, and with flattened sides, due to mutual lateral pressure.

From Confessions of a Beachcomber by E. J. (Edmund James) Banfield

Or how shall a man know what is the true fruit of faith, indeed, whereby he may discern his own estate?

From The World's Great Sermons, Volume 02 Hooker to South by Grenville Kleiser