If you do things merely because you think some other fool expects you to do them, and he expects you to do them because he thinks you expect him to expect you to do them, it will end in everybody doing what nobody wants to do, which is in my opinion a silly state of things.

Youth is just wasted on young people.

Hell is not all paved with bad intentions.

I tell you that as long as I can conceive something better than myself I cannot be easy unless I am striving to bring it into existence or clearing the way for it.

During the last considerable epidemic at the turn of the century, I was a member of the Health Committee of London Borough Council, and I learned how the credit of vaccination is kept up statistically by diagnosing all the revaccinated cases (of smallpox) as pustular eczema, varioloid or what not---except smallpox.

I try to follow his example, not to imitate him.

He who has never hoped can never despair