Amnesia

Nietzsche says: The advantage of a bad memory is that one enjoys several times the same good things for the first time.

In other words, The disadvantage of a good memory is that one suffers from what they have remembered.

One day I talked to an old lady who is a manager of a geriatric support group. She told me how bad the condition for someone to develop Alzheimer's disease, which caused a lot of carer stresses. "The patients looked so healthy that they seemingly are not having problems, but they just cannot remember what they have done with their family members in the past."

Of course, as we all know, the disease has a characteristic of retrograde amnesia, which the patient can easily forget what they have done in the recent time, but can preserve the memory from the very old days. But the patients having severe degeneration can forget everything.

"When I look to my friend Sir Charles Kao." She went on. Mr. Kao is the Nobel Laureate who is also known as the father of optic fiber. "He is never troubled with his problems. Preserving his socializing ability he can join in a lot of parties and be talkative. Of course, he may not even know who he is talking to, or what exactly he is talking about. Despite that he enjoys so much, and I am so moved by his wife, who took care of him for every little thing."

So you see, how bliss and misfortune can combine themselves to present before us. 禍兮福之所倚，福兮禍之所伏 (老子．五十八章)