Learning how to learn is life's most important skill.

Learning how to learn is life's most important skill.

Today is yesterday's pupil.

Today is yesterday's pupil.

Never try to teach a pig to sing. It wastes your time and annoys the pig.

Never try to teach a pig to sing. It wastes your time and annoys the pig.

Difficulty, my brethren, is the nurse of greatness --a harsh nurse, who roughly rocks her foster-children into strength and athletic read more

Difficulty, my brethren, is the nurse of greatness --a harsh nurse, who roughly rocks her foster-children into strength and athletic proportion.

Philosophy when superficially studied, excites doubt, when thoroughly explored, it dispels it.

Philosophy when superficially studied, excites doubt, when thoroughly explored, it dispels it.

This one step -- choosing a goal and sticking to it -- changes everything.

This one step -- choosing a goal and sticking to it -- changes everything.

Stupid is as stupid does.

Stupid is as stupid does.

Nine-tenths of wisdom consists in being wise in time.

Nine-tenths of wisdom consists in being wise in time.

It takes twenty years to become an overnight success.

It takes twenty years to become an overnight success.