Once you have mastered time you will understand how true it is that most people overestimate what they can accomplish in a year - and underestimate what they can achieve in a decade!

Each underestimates her own power and overestimates the other's.

The chief value of money lies in the fact that one lives in a world in which it is overestimated.

I think that God in creating man somewhat overestimated his ability.

I sometimes think that God in creating man somewhat overestimated his ability.

We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.