One​ ​ important​ ideas,​ ​ called
a. intellectual​
b. curiosity. ​ scientific​ ​ habit​ ​ of​ ​ mind​ ​ is​ ​ the​ ​ ability​ ​ to​ ​ conceive​ ​ of​ ​ new ​ honesty.
c.
d. imagination. skepticism.