Nature knows no pause in progress and development, and attaches her curse on all inaction.

Courage is the commitment to begin without any guarantee of success.

Know'st thou yesterday, its aim and reason? Work'st thou will today for worthier things? Then calmly wait the morrow's hidden season, And fear thou not, what hap soe'er it brings

Enjoy what thou has inherited from thy sires if thou wouldn't really possess it. What we employ and use is never an oppressive burden; what the moment brings forth, that only can it profit by.

If you call a thing bad you do little, if you call a thing good you do much

What must the English and French think of the language of our philosophers when we Germans do not understand it ourselves?

That which thy fathers have bequeathed to thee, earn it anew if thou wouldst possess it.