In the end we retain from our studies only that which we practically apply.

This being busied with thoughts of immortality is for the noble classes and especially for women with nothing to do. A solid person, though, someone who already intends to be something worthy here, and who therefore has to strive daily, has to struggle and work, gives the world to come a rest.

Energy is the basis of everything. Every Jew, no matter how insignificant, is engaged in some decisive and immediate pursuit of a goal... It is the most perpetual people of the earth.

Is this the destiny of man? Is he only happy before he has acquired his reason or after he has lost it?

Oh God, how do the world and heavens confine themselves, when our hearts tremble in their own barriers!

The highest happiness, the purest joys of life, wear out at last.

It is impossible that beauty should ever distinctly appreciate itself.