Rick Santorum, Republican presidential candidate, on Tuesday reiterated his stance that gay and lesbian couples don't qualify for marriage.

The former senator from Pennsylvania made his remarks during a question and answer session at Pennsylvania State University, from which he earned a Bachelor's degree in political science in 1980.

The 53-year-old Santorum told the students that legalizing gay marriage would have “profound consequence to the entire moral ecology of America,” would undermine the family, and “destroy faith in America.”

The conversation became heated when Santorum asserted that he's not heard anyone making arguments that marriage equality is “right.”

“I don't hear those arguments,” he said.

“It is extremely unfair for you to say that there are no social science reports that suggest that children are okay in a same-sex relationship,” a female student responded. “There are plenty of statistical studies that prove that they are just as happy, as successful, as everything else as long as they have two parents supporting them.”

Santorum immediately became defensive. “I see,” he said, and then went on to dismiss the students' arguments.

When asked, “Why don't you find protection for gay marriage in the Equal Protection Clause and the Due Process Clause of the Fourteenth and Fifteenth Amendments?” Santorum answered, “Because I'm not an activist and looks at the Constitution as a way to justify my own personal beliefs and imposing them on the rest of society.”

Marriage “is a privilege given out by government that gives government benefits to people who are recognized by the government. It's not a right.”

“It is a completely natural and right institution. And government recognized that. They recognized the value that having men and women married, raising children, is the best possible place for children to be raised. You want to look at the social science on that? Don't even try if you disagree with me.” (The video is embedded in the right panel of this page.)