Whosoever studies works of science must, if he wants to find the truth, transform himself into a critic of everything he reads.
In plain words
Don't just believe what you read. Question it like a detective.
Where these words come from
- 50% sureLots of sources credit Ibn al-Haytham with this, and they agree with each other. The book or the speech it first came from hasn't turned up yet.
- Translated line attributed to Ibn al-Haytham's critical-method writings, cited via Ehsan Masood, Science and Islam, p. 169 (a modern secondary academic source relaying the translation, not a primary text fetch).
More on curiosity
Wonder is the feeling of a philosopher, and philosophy begins in wonder.
PlatoA single conversation with a wise man is worth a month's study of books.Chinese proverbFiction is Truth's elder sister.
Rudyard KiplingReading maketh a full man; conference a ready man; and writing an exact man.
Francis BaconPhilosophy is the microscope of the thought.
Victor HugoThose who don't believe in magic will never find it.
Roald Dahl
PlatoA single conversation with a wise man is worth a month's study of books.Chinese proverbFiction is Truth's elder sister.Rudyard KiplingReading maketh a full man; conference a ready man; and writing an exact man.Francis BaconPhilosophy is the microscope of the thought.Victor HugoThose who don't believe in magic will never find it.Roald DahlMore science
See allNothing in life is to be feared, it is only to be understood.
Marie CurieOne never notices what has been done; one can only see what remains to be done.Marie CurieBe less curious about people and more curious about ideas.Marie CurieLook deep into nature, and then you will understand everything better.
Albert EinsteinThe important thing is not to stop questioning.Albert EinsteinImagination is more important than knowledge.Albert Einstein
Marie CurieOne never notices what has been done; one can only see what remains to be done.Marie CurieBe less curious about people and more curious about ideas.Marie CurieLook deep into nature, and then you will understand everything better.Albert EinsteinThe important thing is not to stop questioning.Albert EinsteinImagination is more important than knowledge.Albert Einstein