Science is wonderfully ...

Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'
 Erwin Chargaff

Quotes from the same author

Outside his own ever-narrowing field of specialization, a scientist is a layman. What members of an academy of science have in common is a certain form of semiparasitic living.
 Erwin Chargaff
One of the most insidious and nefarious properties of scientific models is their tendency to take over, and sometimes supplant, reality.
 Erwin Chargaff
The results serve to disprove the tetranucleotide hypothesis. It is, however, noteworthy-whether this is more than accidental, cannot yet be said-that in all desoxypentose nucleic acids examined thus far the molar ratios of total purines to total pyrimidines, and also of adenine to thymine and of guanine to cytosine, were not far from 1.
 Erwin Chargaff