First, the obvious lesson: people who start saving early for retirement have the most wealth when they are old.

The obvious lesson was: to succeed in life, you had to lie.

We need to learn the obvious lesson that the welfare state doesn't work.

The obvious lesson is to try to bulk up.

When will we learn from our most obvious lessons?

The obvious lesson is that one can never be too complacent about the right to the freedom of ideas.

But the more obvious lesson is that time passes, and things deteriorate.

One obvious lesson is that the changes in the educational sector were almost nowhere "perfect".

There are some obvious lessons to be drawn from applying that principle.

But his claim that "even presidents have private lives" seems the one obvious lesson from the whole mess.