"Pangenesis -- Mr. Darwin's Reply to Professor Delpino" Scientific Opinion (20 October 1869) page 426
• (Detractors sometimes claim Darwin thought that the cell was an undifferentiated mass of protoplasm. This quote proves otherwise.)

A cell is a complex structure, with its investing membrane, nucleus, and nucleolus.

— Charles Darwin

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "A cell is a complex structure, with its investing membrane, nucleus, and nucleolus." in the context of ""Pangenesis -- Mr. Darwin's Reply to Professor Delpino" Scientific Opinion (20 October 1869) page 426
• (Detractors sometimes claim Darwin thought that the cell was an undifferentiated mass of protoplasm. This quote proves otherwise.)" to mean that wisdom is timeless.

Source: Wikiquote: "Charles Darwin" (Quotes, Other letters, notebooks, journal articles, recollected statements) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Charles Darwin

About Charles Darwin

Charles Robert Darwin (12 February 1809 – 19 April 1882) was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. He proposed that evolution could be explained in part through natural and sexual selection. Prompted by awareness that Alfred Russel Wallace was developing similar theories he published his own sooner than he had originally intended. This theory is now an integral component of biological science.