While success can be elusive, a Thomasian chemist found his own formula through balance and steady habits — showing that excellence, much like chemistry itself, is built on patience, accuracy, and intention.
Zeus Cruz, who ranked fourth in the October 2025 chemist licensure examinations, said he avoided pulling all-nighters during his review, stressing how crucial rest and routine were to his preparation.
“There’s no point in driving a car that has no gas,” he said. “If you’re trying to study, you’re tired, you’re not going to learn anything. You just waste the time. You might as well rest, and then by the time you wake up, then you have the energy to study.”
Cruz said it’s essential to manage one’s energy wisely while keeping the focus toward the goal.
“I don’t pull all-nighters. More often than not, I target to study the things that I think need improvement at times when I think I’m at my most optimal. … I want to use my energy to fine-tune or to ensure my knowledge of certain topics.”
Throughout his stay in UST, Cruz received the Rector’s Award for Academic Excellence as valedictorian of the College of Science.
He remained active in student life, serving in the UST Chemical Society for three years, eventually becoming its president during senior year.
He also represented the university in “PACSiklaban,” the national intercollegiate quiz tilt of the Philippine Association of Chemistry Students, where he encountered graduate-level topics not typically covered by undergraduate courses.
As the board exams approached, Cruz said he felt the weight of expectations, knowing that UST had not produced a topnotcher since 2022.
“From the very moment I learned that I received the title of summa cum laude and the Rector’s Award, I already knew that I had to study for two names. One is my own, and one is the name of UST,” he said.
When the results came out and he secured a top spot, Cruz said the pressure finally lifted. Now a licensed chemist, Cruz encourages Thomasians to embrace both the challenges and rewards of university life.
“You’re not going to study forever. And I want to say that one of the things that you should understand is that while you’re there, you make the most of it. “
As he considers potential careers in the chemical industry or academia, he remains anchored in his Thomasian training.
“Whatever UST taught me, I’ll use it for my profession,” he said. “I’m a chemist. Ultimately, I’m a Thomasian chemist.”
