I would say my greatest achievement in life right now - my greatest achievement period is - and I'm still trying to achieve it - is to be a wonderful father to my kids.
The society which scorns excellence in plumbing as a humble activity and tolerates shoddiness in philosophy because it is an exalted activity will have neither good plumbing nor good philosophy: neither its pipes nor its theories will hold water.
It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.