This quote by George Eliot talks to the problem of finding and speaking the fact. It recommends that it is a lot easier to inform a lie than it is to tell the reality. This is due to the fact that lies can be crafted to fit any scenario, while the reality is typically more complex and hard to describe. It also implies that it takes more guts to tell the truth than it does to inform a lie. This is since informing the reality can typically lead to unfavorable consequences, while telling a lie can often lead to positive results. Eventually, this quote acts as a pointer that reality is frequently harder to discover and reveal than falsehood.
"While civilization has been improving our houses, it has not equally improved the men who are to inhabit them. It has created palaces, but it was not so easy to create noblemen and kings"