Man cannot aspire if he looks down; if he rises, he must look up."

"The wise man. . . if he would live at peace with others, he will bear and forbear."

"The reason why so little is done, is generally because so little is attempted."

"Labor is still, and ever will be, the inevitable price set upon everything which is valuable."

"The very greatest things -- great thoughts, discoveries, inventions -- have usually been nurtured in hardship, often pondered over in sorrow, and at length established with difficulty."