The difference between stupidity and genius is that genius has its limits.
Abraham Lincoln

A house divided against itself cannot stand.
Be sure you put your feet in the right place, then stand firm.
Abraham Lincoln
It is better to remain silent and be thought a fool than to open one’s mouth and remove all doubt.
Abraham Lincoln

A perfection of means, and confusion of aims, seems to be our main problem.
Abraham Lincoln

Real knowledge is to know the extent of one’s ignorance.
Abraham Lincoln