“There is no greater impediment to progress in the sciences than the de...” — Georg C. Lichtenberg Quote

“There is no greater impediment to progress in the sciences than the desire to see it take place too quickly.”

“Sickness is mankind's greatest defect.”

“Even truth needs to be clad in new garments if it is to appeal to a new age.”

“People go on about my speech but I've always had a speech impediment.”

“Most of my life I was particularly terrified of speaking up, because I had a speech impediment, which made it difficult to pronounce certain letters, sounds, and I felt like I was fine writing on the page, but once I got on stage, I was worried my words might jumble and stumble.”

“I'm not a smack talker. I have a speech impediment. So if I try to talk smack and I start stuttering, that ruins the whole thing right there anyway.”