Charles Darwin Quote

I am a firm believer, that without speculation there is no good & original observation.


Letter to A. R. Wallace, 22 December 1857


I am a firm believer, that without speculation there is no good & original observation.

I am a firm believer, that without speculation there is no good & original observation.

I am a firm believer, that without speculation there is no good & original observation.

I am a firm believer, that without speculation there is no good & original observation.