Nothing comes to pass in nature, which can be set down to a flaw therein; for nature is always the same, and everywhere one and the same in her efficacy and power of action: that is, nature's laws and ordinances, whereby all things come to pass and change from one form to another, are everywhere and always the same; so that there should be one and the same method of understanding the nature of all things whatsoever, namely, through nature's universal laws and rules.
Baruch SpinozaSo long as a man imagines that he cannot do this or that, so long as he is determined not to do it; and consequently so long as it is impossible to him that he should do it.
Baruch SpinozaIn regard to intellect and true virtue, every nation is on a par with the rest, and God has not in these respects chosen one people rather than another.
Baruch SpinozaWe are so constituted by Nature that we easily believe the things we hope for, but believe only with difficulty those we fear, and that we regard such things more or less highly than is just. This is the source of the superstitions by which men everywhere are troubled. For the rest, I don
Baruch Spinoza