Discontent is the first necessity of progress.

Discontent is the first necessity of progress.

The greatest weariness comes from work not done.

The greatest weariness comes from work not done.

One thing only has been lent to youth and age in common--discontent.

One thing only has been lent to youth and age in common--discontent.

Discontent is the seed of ethics

Discontent is the seed of ethics

I used to think I had ambition . . . but now I'm not so sure. It may have been read more

I used to think I had ambition . . . but now I'm not so sure. It may have been only discontent. They're easily confused.

Content makes poor men rich; Discontent makes rich men poor.

Content makes poor men rich; Discontent makes rich men poor.

Discontent is something that follows ambition like a shadow.

Discontent is something that follows ambition like a shadow.

If necessity is the mother of invention, discontent is the father of progress.

If necessity is the mother of invention, discontent is the father of progress.

The discontented man finds no easy chair.

The discontented man finds no easy chair.