I know what I can know, and am not troubled about what I cannot know..

My mind can take no hold on the present world, nor rest in it a moment, but my whole nature rushes onward with irresistible force towards a future an….

A man can do what he ought to do; and when he says he cannot, it is because he will not..

The person who doubts there is an external world does not need proof: he needs a cure..

All death in nature is birth, and at the moment of death appears visibly the rising of life. There is no dying principle in nature, for nature throug….

The new education must consist essentially in this, that it completely destroys freedom of will in the soil which it undertakes to cultivate, and pro….

He who is firm in will molds the world to himself..

Humanity may endure the loss of everything; all its possessions may be turned away without infringing its true dignity - all but the possibility of i….

What sort of philosophy one chooses depends on what sort of person one is..

What sort of philosophy one chooses depends, therefore, on what sort of man one is; for a philosophical system is not a dead piece of furniture that ….

By philosophy the mind of man comes to itself, and from henceforth rests on itself without foreign aid, and is completely master of itself, as the da….

Not alone to know, but to act according to thy knowledge, is thy destination,--proclaims the voice of my inmost soul. Not for indolent contemplation ….

To those who do not love God, all things must work together immediately for pain and torment, until, by means of the tribulation, they are led to sal….

There are two great classes of men: the people and the scholars, the men of science. For the former, nothing exists but that which directly leads to ….

The correct relationship between the higher and lower classes, the appropriate mutual interaction between the two is, as such, the true underlying su….

The most reckless sinner against his own conscience has always in the background the consolation that he will go on in this course only this time, or….

Only through blind Instinct, in which the only possible guidance of the Imperative is awanting, does the Power in Intuition remain undetermined; wher….

Upon the progress of knowledge the whole progress of the human race is immediately dependent: he who retards that, hinders this also..

Nothing is more destructive of individual character than for a man to lose all faith in his own abilities for the prosecution of his work..

Education should aim at destroying free will so that after pupils are thus schooled they will be incapable throughout the rest of their lives of thin….

Here below is not the land of happiness: I know it now; it is only the land of toil, and every joy which comes to us is only to strengthen us for som….