a man can be given only what he can use; and he can use only that for which he has sacrificed something

Possibly the most interesting first impression of my life came from the world of dreams.

If you want to remember yourself, the best thing is not to think about yourself. As long as you think about yourself, you will not remember yourself.

I mean that you always know what results will come from one or another of your actions; but in a strange way you want to do one thing and get the result that could only come from another

You can understand other people only as much as you understand yourself and only on the level of your own being. This means you can judge other people's knowledge but you cannot judge their being. You can see in them only as much as you have in yourself. But people always make the mistake of thinking they can judge other people's being. In reality, if they wish to meet and understand people of a higher development than themselves they must work with the aim of changing their being.

One cannot keep all old views and opinions and acquire new ones.

Truths that become old become decrepit and unreliable; sometimes they may be kept going artificially for a certain time, but there is no life in them.