婴儿和其他动物由于某些做法有回报才学着做事情，这种观点在过去一段时间里一直为人们所广泛接受。
From some time past it has been widely accepted that babies — and other creatures — learn to do things because certain ACTS lead to rewards.
曾经有一段时间，我常常责备他人，我认为生活中不管是现在的还是未来的失败与困难，都是过去伤害我的那些人的错误。
For a while I considered hiding in the "safety" of blaming others. I could live every day knowing any failure or trouble now and in my future is all the fault of those who caused me harm years ago.
在过去的一段时间，牛牛们一直过着有计划的生活，积聚力量，积累经验，增加知识。
Taurians led a secluded life throughout the previous period. They gathered strength, experience and knowledge.
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