Prefix notation

A more serious problem is the diffuseness of prefix notation. For expert hackers, that really is a problem. No one wants to write (aref a x y) when they could write a[x,y].

In this particular case there is a way to finesse our way out of the problem. If we treat data structures as if they were functions on indexes, we could write (a x y) instead, which is even shorter than the Perl form. Similar tricks may shorten other types of expressions.

— Paul Graham

2011.03.09 Wednesday ACHK

旅程

The smallest possible step, 8

To finish the moment, to find the journey’s end in every step of the road, to live the greatest number of good hours, is wisdom.

– Emerson

The journey is the destination.

當你到達目的地後, 你會發現, 你的最大收穫是, 你的旅程.

– Me@2008.09.24

2011.03.09 Wednesday (c) All rights reserved by ACHK

八二原則

不成比例 3

這段改篇自 2010 年 4 月 30 日的對話。

(CKY:怎麼辦呢?好像有很多東西要記。我怕我的腦子會負荷不來,然後發癲。)

所以你要揀擇地溫,而不要企圖溫完所有東西。你應該先溫最淺的八成內容。大概地說,最淺的八成內容,只需要頭兩成的溫習時間;最深的兩成內容,卻需要尾八成的溫習時間。這就是管理學上的「八二原則」。

— Me@2011.03.08

2011.03.08 Tuesday (c) All rights reserved by ACHK