We should not judge people by ...

We should not judge people by their peak of excellence; but by the distance they have traveled from the point where they started.
We should not judge people by their peak of excellence; but by the distance they have traveled from the point where they started.

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

Every artist dips his brush in his own soul, and paints his own nature into his pictures.
It is one of the severest tests of friendship to tell your friend his faults. So to love a man that you cannot bear to see a stain upon him, and to speak painful truth through loving words, that is friendship.
There is no friendship, no love, like that of the parent for the child.
No man can tell another his faults so as to benefit him, unless he loves him.
When a man sells eleven ounces for twelve, he makes a compact with the devil, and sells himself for the value of an ounce.