IELTS Writing Task 2: The Aim of Science (Band 9 Sample)

Many people argue that science should be judged above all by how much it improves human life. While I agree that this is one of its most valuable purposes, I only partly accept the claim, because the pursuit of knowledge for its own sake is just as important and often leads to the very benefits the statement demands.

1. Why improving lives matters

There is no doubt that much of science should serve practical human needs. Research into diseases, clean energy and safer food has saved and improved countless lives, and it is reasonable to expect public money to be spent on problems that affect ordinary people directly. When resources are limited, prioritising work that reduces suffering seems both sensible and morally right, and few would argue that a cure for a common illness is a waste of effort.

2. Why pure knowledge matters too

However, treating usefulness as the only aim would be short-sighted. A great deal of science begins as pure curiosity with no obvious application, yet ends up transforming the world. Electricity, the study of the atom and the mathematics behind modern computing were all explored long before anyone knew what they were good for. If scientists had only worked on immediately "useful" projects, many of humanity's greatest breakthroughs would never have happened, which is why curiosity-driven research deserves protection too.

In conclusion, improving lives is certainly a crucial aim of science, but I do not accept that it should be the single most important one, since the freedom to pursue knowledge for its own sake is what makes the most valuable discoveries possible in the first place.