"My convictions are unfaltering. I remain true to the ideals I have expressed. This circumstance shall not shake them," said Assange, according to his mother who supplied the network with a written statement of her son's answer.
"If anything this process has increased my determination that they are true and correct."
WikiLeaks has provoked fury in Washington with its publications of secret U.S. cables and has vowed to make public
the 250,000 embassy documents it had obtained.
Assange is under arrest in Britain over sexual assault charges in Sweden.
Assange was also critical of the major finance companies who suspended payments to his WikiLeaks site.
"We now know that Visa, Mastercard, Paypal and others are instruments of U.S. foreign policy. It's not something we knew before," he said.