"Success takes time, persistence, determination, and most importantly, believing in yourself!"
"The only limit to our realization of tomorrow will be our doubts of today."
Franklin D. Roosevelt
"There are two ways to slide easily through life; to believe everything or to doubt everything. Both ways save us from thinking."
"In all affairs its a healthy thing now and then to hang a mark on the things you have long taken for granted."
"Our doubts are traitors and make us lose the good we oft might win by fearing to attempt."
"The beginning of wisdom is found in doubting; by doubting we come to the question, and by seeking we may come upon the truth."
"Doubt 'til thou canst doubt no more . . . doubt is thought and thought is life. Systems which end doubt are devices for drugging thought."
"Galileo called doubt the father of invention;
it is certainly the pioneer."
"A mind troubled by doubt cannot focus on the course to victory."
"Our doubts are traitors and make us lose the good we often might win, by fearing to attempt."
"Doubt whom you will, but never yourself."
"Ten thousand difficulties do not make one doubt."
John Henry Newman