The true Wisdom is in recognizing our own ignorance.

Let us reflect in this way, too, that there is good hope that death is a blessing, for it is one of two things: either the dead are nothing and have no perception of anything, or it is, as we are told, a change and a relocation for the soul from here to another place.

The only place where success comes before work is in the dictionary.There is only one good, knowledge, and one evil, ignorance.

Man must rise above the Earth - to the top of the atmosphere and beyond - for only thus will he fully understand the world in which he lives.

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

All of the wisdom of this world is but a tiny raft upon which we must set sail when we leave this earth. If only there was a firmer foundation upon which to sail, perhaps some divine word.

We are in fact convinced that if we are ever to have pure knowledge of anything, we must get rid of the body and contemplate things by themselves with the soul by itself. It seems, to judge from the argument, that the wisdom which we desire and upon which we profess to have set our hearts will be attainable only when we are dead and not in our lifetime.