The quest for absolute certainty is an immature, if not infantile, trait of thinking.

But the reason I call myself by my childhood name is to remind myself that a scientist must also be absolutely like a child. If he sees a thing, he must say that he sees it, whether it was what he thought he was going to see or not. See first, think later, then test. But always see first. Otherwise you will only see what you were expecting.

Everything must be taken into account. If the fact will not fit the theory---let the theory go.

لماذا وقف المصري دون العقبة لا يقتحمها فذلك لعلة أراها واضحة وهي أن "علماءنا" لا يريدون هم أنفسهم أن يصدقوا علومهم إلا وهم في معامل البحث العلمي لكنهم إذا ما فرغوا من ذلك تركوا "منهج" العلم في الأدراج وانطلقوا مع الجمهور العريض فيما هو فيه

The whole [scientific] process resembles biological evolution. A problem is like an ecological niche, and a theory is like a gene or a species which is being tested for viability in that niche.

We are the recipients of scientific method. We can each be a creative and active part of it if we so desire.