I exhort you also to take part in the great combat which is the combat of life and greater than every other earthly conflict.

The greatest humiliation in life is to work hard on something from which you expect great appreciation and then fail to get it.

Ignorance of all things is an evil neither terrible nor excessive nor yet the greatest of all but great cleverness and much learning if they be accompanied by a bad training are a much greater misfortune.

One of the greatest discoveries a man makes one of his great surprises is to find he can do what he was afraid he couldn't do.

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

These are not dark days: these are great days - the greatest days our country has ever lived.

One of the greatest casualties of the war in Vietnam is the Great Society... shot down on the battlefield of Vietnam.

The greater the obstacle the more glory in overcoming it.

The greatest happiness is to know the source of unhappiness.