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The Zen of Python

by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!

Postulates of special relativity

Ref - Wikipedia

  1. Principle of relativity - The laws of physics take the same form in all inertial frames of reference
  2. Invariance of the speed of light

Postulates of Quantum mechanics

Ref - Wikipedia

  1. The state of an isolated physical system is represented, at a fixed time $t$, by a state vector $\left | \phi \right >$ belonging to a Hilbert space $\mathcal{H}$ called the state space.