As I stood at the base of the mountain range beside a remote African village, the male villagers all repeated the same question: Are you certain you want to climb the mountain?

It had______been climbed by local and foreign men, and local women, but a Western female, who had______ unaccompanied and wanted to climb the mountain, was quite _______

I explained that I'd been______for some time-in research and in physical strength-and showed them the______I had got from their government authorizing my climb.I stressed that Id be very______to keep their local traditions and hire one of their villagers as a guide, but it seemed to do little to reduce their_______

The male villagers told me that the"quick mud"I' d meet would swallow me.While they couldn’t remember anyone this bad actually______, they seemed convinced it was a real ______.The village women,however ,smiled at me, indicating their______for my climb.

The men______relaying stories of unpredictable danger.However, I was______ because my aunt's words kept ______in my ears-the greatest risk is not taking a risk, and we should always ______our dreams.

Eventually, the men agreed to a(n)______that seemed to put them at ease with my climb.Besides the local guide I'd hire, they also______ me to hire three men guards with guns, for protection.

As I started walking down the dirt path toward the mountain, I was______not only by my new mountain support team, but also by every village woman.While two women walked hand-in-hand with me, the others danced in circles around us as if in ______of a victory.

I knew I wasn’t the first Western female to make the climb.But with the women villagers______accompanying me, I felt a strong sense of ______.And I suspected they felt the same.

Memories always die hard. True! Thirty years ago, I was a second-year medical student practicing at a near-by hospital. My university’s philosophy was to get students seeing patients early in their education. Nice as it is, it _______one detail: second-year students may know next to nothing.

Assigned to my team that day was a fully-occupied doctor and he told us to start small. Along with me were two guys just as _______ as I was, but in a scarier way: they had recently graduated from medical school as MDs (medical doctor).

The day began at 6:30 am. We did a quick check of our three patients and later we were to _______our findings to the doctor, which we supposed was a piece of cake.

But when I arrived in the room of 70-year-old Mr. Adams, he was sitting up in bed, sweating and _______heavily. He’d just had a hip operation and looked terrible. I listened to his lungs with my stethoscope, but they _______clear. Next I checked and found his heart rate had been _______ , but his temperature was steady. It didn’t seem like heart failure, nor did it appear to be pneumonia. So l asked Mr. Adams what he thought was going on.

“It’s really hot in here, Doc”he replied.

So I concluded that his condition resulted from the stuffy room and told him the rest of the team would return in a few minutes, _______ him it was OK. He then _______ a smile and waved goodbye weakly.

Back to my office, still _______ about Mr. Adams, I checked my textbooks and notes. I ________when seeing his symptoms on the page: heavy sweating and shortness of breath ________ clear lungs — that’s pulmonary embolism (肺部栓). Obviously, I made a silly mistake and________consumed me.

“Code Blue Room307!”, however, I instantly called the doctor,________to the room.

________, he was still fine and received the immediate operation.

This incident has been in my mind for 30 years. What if I hadn’t read that chapter in the textbook? What if I was too scared, too insecure, and too ________ to ask the real doctor for help?

When I was seven years old and my sister Amy was just five years old, we were playing on top of a bunk bed. I thought without help or any _________ from me at all, suddenly Amy disappeared off of the top of the bunk bed and _________ with a crash on the floor. I nervously peered over the side of the bed and saw that she had landed _________ on her hands and knees on the ground.

I was nervous because my parents had _________ me with making sure that we played as _________ as possible. I saw my sister’s painful face threatening to _________ from her mouth and threatening to wake up my parents. So I did the only thing my little seven-year-old _________ could think to do to change this _________. I said, “Amy, Amy, wait. Don’t cry…No human lands on all fours like that. Amy, I think this means you’re a unicorn (独角兽).” Obviously, that was cheating, but there was nothing in the world my sister would want _______ the unicorn. Instead of crying, instead of __________ our play, with all the negative consequences that would have waited for me, a smile __________ across her face. She climbed onto the bunk bed again with all the grace of a baby unicorn, with one __________ leg.

What we __________ unconsciously at that tender age is something called positive psychology. It’s not necessarily the reality that shapes us, but the lens (棱镜) through which your brain __________ the world that shapes your reality. And if we can change the lens, believe me we can change every single educational and business __________ at the same time.