An electron when understood as a quantum wave, it cannot even be localized (so-called non-locality). And when understood as a particle, the electromagnetic field it generates has spherical symmetry (due to the fact that space is isotropic), which is equivalent to the existence of perfect circles.
A circle is as real as an electron when the reality of the electron is accepted, and, the electron is as non-real as a circle when the circle is denied its reality.
虽然对柏拉图的看法差不多，但是还是认为这样卓越的例子仍然不能证明有完美的圆，虚空并不是homogeneous的，至少受到各种其他物体的影响，观察电子时的观察者也会对电子产生影响. 电子产生的电磁场是圆形的所据的物理定律，俺认为都是近似的，至少真正的科学是永远没有结论的，所有的结论都是临时的，并且subject to change。
An electron when understood as a quantum wave, it cannot even be localized (so-called non-locality). And when understood as a particle, the electromagnetic field it generates has spherical symmetry (due to the fact that space is isotropic), which is equivalent to the existence of perfect circles.
A circle is as real as an electron when the reality of the electron is accepted, and, the electron is as non-real as a circle when the circle is denied its reality.
以上衹是一個信手拈来的例子。
柏拉图的時代的哲學衹是非常原始和樸素的嘗試，認真，但往往是簡陋的。不必對之抱殘守缺。
人脑的世界，是比物理的世界更真实的存在。不然唯心主义，是从哪里来的？
你举一个黑格尔的哲学影响的人数有柏拉图那么多。
虽然对柏拉图的看法差不多，但是还是认为这样卓越的例子仍然不能证明有完美的圆，虚空并不是homogeneous的，至少受到各种其他物体的影响，观察电子时的观察者也会对电子产生影响. 电子产生的电磁场是圆形的所据的物理定律，俺认为都是近似的，至少真正的科学是永远没有结论的，所有的结论都是临时的，并且subject to change。
雷佳《明月千里寄相思》
Their existence is not necessarily to let you see. Their are out there regardless you can see them or not. You can't see the air can't you?