Donald Johanson Quotes
Top 10 wise famous quotes and sayings by Donald Johanson
Donald Johanson Famous Quotes & Sayings
Discover top inspirational quotes from Donald Johanson on Wise Famous Quotes.
You don't just magically flip some evolutionary switch somewhere and transmute a quadruped into an upright-walking bipedal human.
It's very hard for all of us, when we've committed ourselves to a particular interpretation, to change our minds.
Evolution is a fact. It is the best explanation of what is known from observations. It's a theory as powerful as the theory of gravity.
All mammals undergo a certain degree of diversification. Darwin knew that. When he drew a family tree, it had many branches on it.
One has to devote oneself to a particular pursuit. To be successful at anything, you have to make a total commitment to it.