Never promise more than you can perform.

A rolling stone gathers no moss.

No one should be judge in his own case.

The fear of death is more to be dreaded than death itself.

The best way to keep one's word is not to give it.

To obtain credibility, an unending series of daily correct actions are necessary. To lose it, one mistake is enough.

Confidence... thrives on honesty, on honor, on the sacredness of obligations, on faithful protection and on unselfish performance. Without them it cannot live.