-Marcus Borg
Wisdom comes in two forms: conventional and alternative.
Wisdom teachers are known in every culture throughout history as either:

Wisdom teachers speak of two ways or two paths:
They encourage their hearers to follow one and avoid the other.
Wisdom teachers make observations about life and speak out of experience.
Conventional
wisdom teachers say things like: "You
reap what you sow..."
Alternative wisdom teachers say things like: "Consider the lilies of the field, how they grow..."
Conventional wisdom is cultural consensus.
Conventional wisdom tells us how to live - it is what we are socialized into as we grow up in any given culture.
Conventional
wisdom is based on rewards and punishments - "you
reap what you sow" is standard in every culture.
Conventional wisdom has social and psychological consequences.
Conventional wisdom is a culture's domestication or map of reality built of language, words, systems of ordering.
We cannot live without conventional wisdom, but it has some negative aspects:

What are some of the conventional wisdom ideas you know?
How do they affect your image of God?
Jesus
as an Alternative Wisdom Teacher
Jesus invites his hearers to leave conventional wisdom behind in order
to live by an alternative wisdom.
A Portrait of Jesus Introduction
Lenses through which Borg sees Jesus
Compare Pre- and Post-Easter Jesus
Summaries of the Pre-Easter Jesus
Context: Spirit Persons in Many Cultures
Context: Wisdom Teachers in Many Cultures
Context: Social and Cultural World of Jesus
Books and Articles by Marcus Borg
FaithFutures Foundation: integrating faith and scholarship
Living the Questions, a progressive 12-week DVD and web curriculum to help participants discover the relevance of Christianity in the 21st Century and what a meaningful faith can look like in today's world. Features Marcus Borg and 14 other scholars and pastors.
New Testament Gateway, created by Dr. Mark Goodacre, University of Birmingham, UK
The Jesus Seminar, created by Dr. Mahlon Smith, Jesus Seminar Fellow and faculty at Rutgers University
Virtual Religion Index, created by Dr. Mahlon Smith, Rutgers University
Westar Institute, official Jesus Seminar site; includes churches open to the scholarship of the Jesus Seminar