Proverbs 14:12
There is a way that seems right to a man,
But its end is the way of death.

Here is one everyone should know but not everyone heeds.

Many have done things with good intentions but not all good intentions are right. And good intentions don’t get you into heaven.
Nazi Germany thought it right to rid themselves of ethnicities not associated with the purity of the race. It wasn’t right and it certainly was the way of death.
God’s ways are not man’s ways reports Isaiah.
“For My thoughts are not your thoughts, nor are your ways My ways,” says the Lord.
“For as the heavens are higher than the earth, so are My ways higher than your ways, and My thoughts than your thoughts.” Isa 55:8-9
Our righteousness only exists in Christ.
Outside of Him we are wrong and will end in death.