you can do anything you set your mind to

Silence is not always a sign of wisdom, but babbling is ever a mark of folly.

It is a grand mistake to think of being great without goodness and I pronounce it as certain that there was never a truly great man that was not at the same time truly virtuous.

There's many witty men whose brains can't fill their bellies.

I have always thought that one man of tolerable abilities may work great changes, and accomplish great affairs among mankind, if he first forms a good plan, and, cutting off all amusements or other employments that would divert his attention, make the execution of that same plan his sole study and business.

The early morning has gold in its mouth.

The learned fool writes his nonsense in better language than the unlearned, but it is still nonsense.