english: And with this famous entry in his notebook, he begins in the top left-hand corner with, "I think," and then sketches out the first tree of life, which is his perception of how all the species, all living things on Earth are connected through evolutionary history -- the origin of species through natural selection and divergence from an ancestral population.
non_english: Ta znamenit zapis v njegovi beležnici začne v zgornjem levem kotu z besedo "Mislim," zraven pa je skica prvega rodoslovnega drevesa, njegove predstave, da so vse vrste, vsa živa bitja na Zemlji, povezana z evolucijsko zgodovino -- izvorom vrst preko naravnega izbora in odstopanjem od populacije prednikov.