There is a history in all men's lives.
在没有其他信息的情况下,参数的最佳估计是其样本值。
农时:指春耕、夏耘、秋收三个时令。与其等灾荒来了再想办法补救,不如早防备灾荒,而防备灾荒最好就是抓住农时。
思想的存在是为了服务行动,而不仅仅是反映现实。
That's the only trouble with being a dog...they never tell you anything…
Time is your friend; impulse is your enemy.