"Blind faith, no matter how passionately expressed, will not suffice. Science for its part will test relentlessly every assumption about the human condition."

"Individual versus group selection results in a mix of altruism and selfishness, of virtue and sin, among the members of a society."

"A very Faustian choice is upon us: whether to accept our corrosive and risky behavior as the unavoidable price of population and economic growth, or to take stock of ourselves and search for a new environmental ethic."

"If those committed to the quest fail, they will be forgiven. When lost, they will find another way. The moral imperative of humanism is the endeavor alone, whether successful or not, provided the effort is honorable and failure memorable."

"It is a radiant truth that love does not demand perfection; it embraces the authentic journey of growth."

"The echoes of eternity remind us that the heart sees what is invisible to the eye."

"Love is life. And if you miss love, you miss life."

"A courageous heart knows that the pursuit of truth is a lifelong endeavor."