“It is not by lack of capability that we don't thrive but it is by either lack of knowledge that we possess it or by non-application of it.”

“Having a lot of children is the result of a lack of medical knowledge. We don't even know ourselves, let alone know the opposite sex.”

“The key to good decision making is not knowledge. It is understanding. We are swimming in the former. We are desperately lacking in the latter.”

“The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather in a lack of will. ”

“Nobody dies from the lack of sex. It's lack of love we die from.”

“Lack of direction, not lack of time, is the problem. We all have twenty-four hour days.”

“For it falls out
That what we have we prize not to the worth
Whiles we enjoy it, but being lacked and lost,
Why, then we rack the value, then we find
The virtue that possession would not show us
While it was ours.”

“Most events spring from causes equally small: we are unacquainted with them because most historians have been themselves ignorant of them, or have not had eyes capable of perceiving them. It is true, that, in this respect, the mind may repair their omissions; for the knowledge of certain principles easily compensates the lack of knowledge of certain facts.”

“Faults in English prose derive not so much from lack of knowledge, intelligence or art as from lack of thought, patience or goodwill.”

“To fight against this lack of understanding, against a whole world of non-understanding, was impossible.”