You cannot go around and keep ...

You cannot go around and keep score. If you keep score on the good things and the bad things, you'll find out that you're a very miserable person. God gave man the ability to forget, which is one of the greatest attributes you have. Because if you remember everything that's happened to you, you generally remember that which is the most unfortunate.
 Hubert H. Humphrey

Quotes from the same author

Today we know that World War II began not in 1939 or 1941 but in the 1920's and 1930's when those who should have known better persuaded themselves that they were not their brother's keeper.
 Hubert H. Humphrey
We need an America with the wisdom of experience. But we must not let America grow old in spirit.
 Hubert H. Humphrey
Behind every successful man is a proud wife and a surprised mother-in-law.
 Hubert H. Humphrey
And it is to these rights - the right of law and order, the right of life, the right of liberty, the right of a job, the right of a home in a decent neighborhood, and the right to an education - it is to these rights that I pledge my life and whatever capacity and ability I have.
 Hubert H. Humphrey
Like many things in our national life, we miscalculated. We overestimated our ability to control events, which is one of the great dangers of a great power. Power tends to be a substitute for judgment and wisdom.
 Hubert H. Humphrey