A friend was commenting on a surgical photo my wife took of some bladder stones she removed surgically from a dog, with the hippocratic oath which states “I will not cut for stone” with the idea that a cystotomy in ancient times normally was fatal in the hands of an inexperienced surgeon, so since you are to do no harm, only a skilled urologist should perform the surgery. so in reading the background about Hippocrates’ views on surgery, I found this quote from his most famous work “the aphorisms”. My friend who is a surgeon really liked the quote. That is walnut ply with default settings. The engravings are all at “Graphic” setting.