Quote is from the renowned Arab mathematician and brilliant polymath Ibn Al-Haytham (Arabic: أب و ع لي، ال ح سن ب ن ال ح سن ب ن ال ه ي ثم ), considered by many historians of science to be the father of the modern scientific method; he made this statement in his famous 7-volume treatise on optics, Kitab Al-Manadhir (written ca. 1011 - 1021, purportedly while under house arrest in Egypt). Note: Piri Reis' full, formal Turkish name was Hadji Ahmed Muhiddin Piri.

1. “We start by observing reality ... we try to select solid
(unchanging) observations that are not affected by how we
perceive (measure) them. We then proceed by increasing
our research and measurement, subjecting premises to
criticism, and being cautious in drawing conclusions ... In
all we do, our purpose should be balanced not arbitrary, the
search for truth, not support of opinions ... Hopefully, by
following this method ... (we can find a) road to the truth
that we can be confident in ...”
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Ibn al-Haytham ‫ثم‬ ‫ي‬ ‫ه‬ ‫ال‬ ‫ن‬ ‫ب‬ ‫سن‬ ‫ح‬ ‫ال‬ ‫ن‬ ‫ب‬ ‫سن‬ ‫ح‬ ‫ال‬ ،‫لي‬ ‫ع‬ ‫و‬ ‫ب‬
Kitâb al-Manâzir ca. 1011 - 1021 Image: surviving fragment of a map of the pre-
modern world compiled in 1513 from military
intelligence by the brilliant Ottoman admiral and
cartographer, Piri Reis – now thought to be entirely
authentic thanks to book by Gavin Menzies,”1421:
The year China discovered America” (2002)