Perseverance is key when the test subjects keep failing. - Dr. Krieger

"Perseverance is key when the test subjects keep failing."

Dr. Krieger Perseverance

More from Dr. Krieger

"I'm not insane, I'm just not sane in the traditional sense."

"You know what they call me in the lab? Doctor. Because I have a PhD."

"Science doesn't care about your feelings."

"I've done worse things before breakfast."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."