Take it,typical human scene here in Cambridge.
舉一個典型的人類場景為例 就在劍橋這里
Three people having a pleasant day out on the River Cam..
三個人快樂地在康河上出游
which winds its way between the colleges.
康河蜿蜒在各學院之間
These people,whose body are controlled by their brains
這些人的身體被他們的大腦掌控
Can interact with each other.
他們能彼此互動
Appreciate each other and their surroundings.
欣賞對方 也能欣賞周遭環境
And might even decide to play a song...or fall in love.
他們甚至可能決定彈一首歌 或者墜入愛河
Their world is not without meaning. Quite the opposite.
他們的世界并非無意義 正好相反
Their world is full of meaning.
他們的世界充滿意義
To them,even a simple glance can be laden with meaning.
即使是一個簡單的凝視 對他們而言都充滿了意義
So much so that it's easy to get carried away.
以至于一不小心就分神了
So finding out where the meaning is
因此查出意義何在
is a problem for science.
就屬于科學要探討的問題
And it means delving into why we have consciousness at all.
這表示要鉆研人到底為何會有意識
Enter one of the greatest theories in science: evolution.
此時科學最偉大的一項理論就登場了 演化論