What are the most valuable human virtues?

The Reliquiae Antiquae states that “Any man who possesses integrity, compassion, generosity and courage carries a title to gentility. Whoever lacks three of these four virtues ought never to be called a gentleman.”

Truly, if we possess these, or are lacking in one where the others can make up for it, then we should be able to overcome many of life’s problems as a human race, and perhaps to move humanity forward, put aside so many petty issues and really make a difference to life as a whole.

Do you agree with these virtues (taking into account that their context in the Reliquiae is several hundred years old)? What virtues do you think people would do well to benefit from? What virtues do you think, that if someone possessed, they would be able to deal with life more confidently and considerately?