Calculus

I still remember the feeling of sitting in my freshman calculus class at Tsinghua University, Beijing, China. The blackboard was filled with symbols, theorems, and proofs that seemed completely disconnected from reality. It felt intimidating, like a towering wall of abstract concepts I could never hope to climb. I saw my peers (especially my boyfriend at the time, who is now my husband💗) - it seemed - grasping these ideas with ease, and I questioned whether I had what it took to succeed. ...