A house without books is like a room without windows. No man has a right to bring up his children without surrounding them with books, if he has the means to buy them. It is a wrong to his family. He cheats them! Children learn to read by being in the presence of books. The love of knowledge comes with reading and grows upon it.

Astronomy is one of the sublimest fields of human investigation. The mind that grasps its facts and principles receives something of the enlargement and grandeur belonging to the science itself. It is a quickener of devotion.

You need not tell all the truth, unless to those who have a right to know it; but let all you tell be truth.

Every addition to true knowledge is an addition to human power.

Love not only occupies the higher lobes of the brain, but crowds out the lower to make room for its expansion.

Praise begets emulation,--a goodly seed to sow among youthful students.

Doing nothing for others is the undoing of one's self. We must be purposely kind and generous, or we miss the best part of existence. The heart that goes out of itself, gets large and full of joy. This is the great secret of the inner life. We do ourselves the most good doing something for others.