Love can do much, but duty more.

The highest problem of any art is to cause by appearance the illusion of a higher reality.

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.

Those who make use of devotion as a means and end generally are hypocrites.

Solitude is fine when you are at peace with yourself and have something definite to do.

The safest thing is always to try to convert everything that is in us and around us into action; let the others talk and argue about it as they please.

The most original of authors are not so because they advance what is new, but more because they know how to say something, as if it had never been said before.