[Asked whether he would like to see an experimental demonstration of conical refraction] No. I have been teaching it all my life, and I do not want to have my ideas upset. — Isaac Todhunter Copy Share Image
![“[Asked whether he would like to see an experimental demonstration of conical refraction] No. I have been teaching it all my life, and I do not want to have my ideas upset.” quote by Isaac Todhunter](https://sms4smile.com/quotes/img-quotes/8f4/isaac-todhunter-91156_demonstration_asked-whether-he-would-like-to-see-an-ex_1283258.jpg)