That's what the pessimists say.

那是悲观主义者的说法。

The pessimists were right.

悲观者的看法曾是对的。

The pessimists proved the more prescient.

事实证明，悲观者更有先见之明。

Pessimists say Mr Kabila acted out of desperation.

悲观者们宣称，卡比拉已经流露出绝望的情绪。

Not all of history is on the pessimists’ side.

历史并不总是让人灰心丧气的。