With practice and training we can increase our attention and become more intelligent.

I was so surprised by this quote from Alfred Binet given that he is famous for inventing the IQ test. But he understood the growth mindset!

Alfred Binet, quoted by Carol Dweck in Mindset: "With practice, training, and, above all, method, we manage to increase our attention, our memory, our judgment, and literally to become more intelligent than we were before."

With practice and training, 

we can increase our attention and become more intelligent.